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WO2018099327A1 - 无人机、电池模组及充放电控制方法 - Google Patents

无人机、电池模组及充放电控制方法 Download PDF

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Publication number
WO2018099327A1
WO2018099327A1 PCT/CN2017/112824 CN2017112824W WO2018099327A1 WO 2018099327 A1 WO2018099327 A1 WO 2018099327A1 CN 2017112824 W CN2017112824 W CN 2017112824W WO 2018099327 A1 WO2018099327 A1 WO 2018099327A1
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WO
WIPO (PCT)
Prior art keywords
temperature
heat
heating
heat conducting
battery
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.)
Ceased
Application number
PCT/CN2017/112824
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English (en)
French (fr)
Inventor
肖锭锋
温海军
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.)
Guangzhou Xaircraft Technology Co Ltd
Original Assignee
Guangzhou Xaircraft 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
Priority claimed from CN201611102180.XA external-priority patent/CN107403973B/zh
Priority claimed from CN201621321874.8U external-priority patent/CN206349470U/zh
Priority to KR1020187014952A priority Critical patent/KR102084624B1/ko
Application filed by Guangzhou Xaircraft Technology Co Ltd filed Critical Guangzhou Xaircraft Technology Co Ltd
Priority to PL17870630T priority patent/PL3550663T3/pl
Priority to EP17870630.5A priority patent/EP3550663B1/en
Priority to JP2018532469A priority patent/JP6586235B2/ja
Priority to ES17870630T priority patent/ES2919949T3/es
Priority to AU2017359583A priority patent/AU2017359583B2/en
Priority to US15/774,506 priority patent/US10840497B2/en
Publication of WO2018099327A1 publication Critical patent/WO2018099327A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H02J7/977—
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H01M10/443—Methods for charging or discharging in response to temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/623—Portable devices, e.g. mobile telephones, cameras or pacemakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/63—Control systems
    • H01M10/633—Control systems characterised by algorithms, flow charts, software details or the like
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
    • H01M10/6571—Resistive heaters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/581—Devices or arrangements for the interruption of current in response to temperature
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • H02J7/70—
    • H02J7/975—
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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

Definitions

  • the present invention relates to the field of battery technologies, and in particular, to a drone, a battery module, and a charging and discharging control method.
  • the effect of temperature on the battery is manifested in two aspects; in a low temperature environment, such as winter, the battery capacity is reduced, the temperature in the battery is too low, which is not conducive to the electrochemical reaction of the battery, and the slow chemical reaction rate is easy to lose, and the use requirement cannot be met, and In the low temperature environment, the battery charge and discharge performance is also worse than the normal temperature. Even when the battery temperature is lower than a certain value, the battery can not be directly charged, facing the safety hazard of low temperature charging; when the ambient temperature rises, the battery capacity increases, and the internal chemical reaction of the battery Significantly increased, and the reaction rate and temperature are in a series relationship. The increase in temperature causes the internal resistance of the battery to be small and the battery efficiency to be improved.
  • the higher temperature also accelerates the harmful reaction, and the electrode is easily damaged.
  • the heat generation rate of the battery is greater than the heat dissipation rate, and a large amount of heat is collected to heat up the battery if the heat cannot be effectively dissipated. The impact on battery capacity, life, stability of use and safety is more significant.
  • the heat sink is dissipating heat for the power battery in both the high temperature environment and the low temperature environment, the heat dissipation structure of the power battery is complicated, and the heat dissipation efficiency is not satisfactory, resulting in an increase in the cost of the battery module. Battery module life, stability and safety are not guaranteed.
  • the present invention aims to solve at least one of the technical problems in the related art to some extent.
  • the present invention provides a battery module that has a simple structure, a good heat dissipation effect, and can preheat the battery, have stable performance, long service life, and high safety performance.
  • the invention also proposes a charging and discharging control method for the above battery module.
  • the invention also proposes a drone having the above battery module.
  • a battery module comprising: a battery body; an outer casing, the battery body is disposed in the outer casing; a heat conducting component, the heat conducting component is thermally connected to the outer casing and the outer casing Between the battery bodies; a first heating member, the first heating member is coupled to the battery body, the first heating member is for heating the battery body; the second heating member, the second heating member Connected to the heat conducting component, the second heating component is configured to heat the heat conducting component; a temperature sensor; the temperature sensor is configured to detect a temperature of the battery body, and is configured to be used according to the detected The temperature of the battery body generates a temperature signal; the control component is electrically connected to the first heating component, the second heating component and the temperature sensor, respectively, the control component is configured to receive the a temperature signal, and for controlling the first heating element and the second heating element based on the temperature signal.
  • a battery module is configured to heat a battery body by a first heating member, and is thermally connected between the outer casing and the battery body through a heat conducting component provided, and is provided with a second heat conducting member
  • the heat conducting component is heated, and the temperature of the battery body is detected by the set temperature sensor, so that the control component of the battery module can control the first heating component and the second heating component to heat or stop heating according to the temperature signal fed back by the temperature sensor.
  • the heating of the first heating element and the second heating element can be controlled when the ambient temperature is low, wherein the first heating element can directly heat the battery body, and the second heating element can transfer heat to the battery body through the heat conduction component, thereby
  • the battery body can be preheated in a low temperature environment to ensure that the battery module can be normally charged and discharged, and the charging and discharging performance of the battery module can be improved; and the first heating element and the second heating element are controlled to stop when the ambient temperature is high. Heating and transferring heat generated by the battery body to the outer casing through the heat conducting component, thereby Quickly heat generated in the battery body when effectively dispersed, and thus can extend the life of the battery module, the stability and safety of use.
  • the heat conducting component includes a first heat conducting member and a second heat conducting member thermally coupled to each other, the battery body including a sidewall and an end wall connected to one end of the sidewall, the first A heat conducting member is thermally coupled to the sidewall, the second heat conducting member is adjacent to the end wall, and the second heat conducting member is thermally coupled to the outer shell.
  • the thermally conductive assembly further includes a heat pipe including a first end and a second end bently coupled to the first end, the first end of the heat pipe and the first end The heat conducting members are connected, and the second end of the heat pipe is connected to the second heat conducting member.
  • the heat pipe comprises a plurality of heat pipes spaced apart, a first end of each of the heat pipes extending along a length of the first heat conducting member, and each of the heat pipes The two ends extend along the length direction of the second heat conducting member.
  • the heating power of the first heating member is less than the heating power of the second heating member.
  • the thermally conductive component comprises a plurality of sets, the plurality of sets of the thermally conductive components being spaced apart along a circumferential or height direction of the battery body.
  • the second heating element is a heating plate or a heating film or a semiconductor heating sheet.
  • the battery body includes an inner casing and a plurality of battery cells, the inner casing including the end wall and the side wall, and the inner casing defines a plurality of spaced apart from each other The plurality of battery cells are respectively disposed in the plurality of receiving spaces.
  • the charging and discharging control method of the battery module according to the second aspect of the present invention includes the following steps: S01, the control component receives a temperature signal sent by the temperature sensor, wherein the temperature signal is the temperature sensor According to the temperature of the battery body; S02, when the temperature Tx corresponding to the temperature signal does not exceed the temperature T0, the control component controls the first heating element to heat the battery body, the control The assembly controls the second heating element to heat the thermally conductive component, wherein the temperature T0 is a temperature threshold.
  • the temperature of the battery body is detected by the temperature sensor before the battery module is charged and discharged, and when the detected temperature of the battery body does not exceed the set temperature threshold
  • the control component controls the heating of the first heating element and the second heating element, so that the battery body can be preheated in a low temperature environment, and the charging and discharging control method is simple and reliable, and can ensure normal charging and discharging of the battery module and can improve The charge and discharge performance of the battery module.
  • the control component when the temperature Tx exceeds the temperature T0, the control component controls the first heating member not to heat the battery body, and the control component controls the second heating member to be incorrect The thermally conductive component is heated.
  • the temperature T0 is from 15 ° C to 20 ° C.
  • a drone according to an embodiment of the third aspect of the present invention includes the battery module according to the first aspect of the present invention.
  • the overall performance of the drone can be improved by providing the above-described battery module.
  • FIG. 1 is a longitudinal cross-sectional view of a battery module in accordance with an embodiment of the present invention
  • FIG. 2 is a transverse cross-sectional view of a battery module in accordance with an embodiment of the present invention
  • FIG. 3 is a partial structural view of a battery module in accordance with an embodiment of the present invention.
  • Figure 4 is an enlarged view of A in Figure 3;
  • FIG. 5 is an assembled view of a battery body and a heat conducting component of a battery module according to an embodiment of the present invention
  • FIG. 6 is an assembled view of another angle of a battery body and a heat conducting component of a battery module according to an embodiment of the present invention
  • FIG. 7 is a structural diagram of a battery body of a battery module according to an embodiment of the present invention.
  • a heat conducting component 4 a first heat conducting member 41; a second heat conducting member 42; a recess 421; a heat pipe 43;
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.
  • a battery module 100 according to an embodiment of the present invention will now be described with reference to Figs.
  • a battery module 100 includes: a battery body, an outer casing, a heat conducting component 4, a first heating component 5, a second heating component 6, a temperature sensor, and a control component 7. .
  • the battery body is disposed in the outer casing, and the heat conducting component 4 is thermally connected between the outer casing and the battery body, and the heat conducting component 4 can transfer heat.
  • the thermally conductive component 4 can transfer heat on the battery body to the outer casing, and the thermally conductive component 4 can also transfer heat to the battery body.
  • the first heating member 5 is for heating the battery body, and the first heating member 5 may be disposed on the battery body.
  • the first heating member 5 can directly heat the battery body when the first heating member 5 is in operation.
  • the second heating element 6 is used to heat the heat conducting component 4, and the second heating element 6 may be disposed on the heat conducting component 4.
  • the second heating element 6 can heat the thermally conductive component 4 when the second heating element 6 is in operation. Since the thermally conductive component 4 is thermally coupled between the outer casing and the battery body, the thermally conductive component 4 can transfer heat to the battery body.
  • the temperature sensor is configured to detect a temperature of the battery body and to generate a temperature signal according to the detected temperature of the battery body, and the temperature sensor may be disposed on the battery body.
  • the control component 7 is electrically connected to the first heating component 5, the second heating component 6, and the temperature sensor, respectively, the control component 7 is configured to receive the temperature signal, and to be used according to the The temperature signal controls the first heating member 5 and the second heating member 6. That is, the control component 7 can control the first heating element 5 and the second heating element 6 to heat or stop heating according to a temperature signal generated by the temperature of the battery body detected by the temperature sensor.
  • the heating power of the first heating element 5 may be smaller than the heating power of the second heating element 6.
  • the control unit 7 controls the heating of the first heating element 5 and the second heating element 6, it can be ensured that the temperature of the heat conducting component 4 heated by the second heating element 6 is greater than the temperature of the battery body heated by the first heating element 5, thereby It can be ensured that the heat conducting component 4 can transfer heat to the battery body, preventing the temperature of the heat conducting component 4 from being lower than the battery body, so that the heat of the battery body is transmitted to the outer casing body to be emitted, thereby avoiding waste of energy.
  • the battery body In a high temperature environment (for example, summer), during operation of the battery module 100, the battery body generates a large amount of heat, and the temperature sensor detects that the temperature of the battery body is high. The temperature sensor transmits the temperature signal to the control assembly 7, and the control assembly 7 controls the first heating member 5 and the second heating member 6 to be inoperative. At this time, the heat conducting component 4 can transfer heat of the battery body to the outer casing body, and finally heat is dissipated to the external environment through the outer casing body, thereby generating heat generated by the battery body in a timely and effective manner. Dissipating to the external environment, thereby prolonging the service life, stability, and safety of the battery module 100.
  • a high temperature environment for example, summer
  • the temperature of the battery body is low, which is disadvantageous to the chemical reaction of the battery body or even direct charge and discharge.
  • the temperature sensor detects that the temperature of the battery body is low, the temperature sensor transmits the temperature signal to the control component 7, and the control component 7 controls the first heating element 5 and the first The two heating elements 6 work.
  • the first heating member 5 can directly heat the battery body, so that the temperature of the battery body can be quickly increased, and the second heating member 6 heats the heat conducting component 4, the heat conducting component 4 heat can be transferred to the battery body, whereby the battery body can be quickly and uniformly heated by the first heating member 5 and the second heating member 6 provided.
  • the battery module 100 can perform charging and discharging work, and the control component 7 can control the first heating element 5 and the second heating element 6 The heating is stopped, so that the battery body can be quickly preheated in a low temperature environment, and the battery module 100 can be normally charged and discharged, and the charging and discharging performance of the battery module 100 can be improved.
  • the battery module 100 is configured to heat the battery body through the first heating member 5, and is thermally connected between the outer casing and the battery body through the disposed heat conducting component 4, and is provided with a second
  • the heat conducting member 42 is configured to heat the heat conducting component 4 while detecting the temperature of the battery body through the set temperature sensor, whereby the control component 7 of the battery module 100 can control the first heating component 5 according to the temperature signal fed back by the temperature sensor.
  • the second heating member 6 heats or stops heating, so that the first heating member 5 and the second heating member 6 can be controlled when the ambient temperature is low.
  • the first heating element 5 can directly heat the battery body, and the second heating element 6 can transfer heat to the battery body through the heat conduction component 4, so that the battery body can be preheated in a low temperature environment to ensure the battery module 100 can normally perform charging and discharging and can improve the charging and discharging performance of the battery module 100; control the first heating member 5 and the second heating member 6 to stop heating when the ambient temperature is high, and generate the battery body through the heat conducting component 4
  • the heat is transferred to the outer casing, so that the heat generated by the battery body can be effectively dissipated in a timely manner, thereby prolonging the service life, stability and safety of the battery module 100.
  • a battery module 100 according to an embodiment of the present invention will be described in detail below with reference to FIGS.
  • the battery module 100 includes a battery body, an outer casing, a heat conducting component 4, a first heating member 5, a second heating member 6, a temperature sensor, and a control assembly 7.
  • the outer casing is substantially rectangular parallelepiped, and the outer casing includes a front side panel 11 and a rear side panel 12 which are spaced apart from each other, a left and right side panel 13 and a right side panel 14 which are spaced apart from each other, and a cover a top cover 15 at the top of the outer casing, the left side plate 13 connecting the left end of the front side panel 11 and the left end of the rear side panel 12, the right side panel 14 connecting the right end of the front side panel 11 And the right end of the rear side panel 12, the lower portion of the left side panel 13 and the lower portion of the right side panel 14 are both recessed inward.
  • the bottom of the outer casing is formed by a plurality of horizontally disposed first ribs 16 interlaced with each other, and the plurality of first ribs 16 interlaced with each other are further provided with a plurality of vertically disposed second ribs 17 for reinforcement.
  • the eight corners of the outer casing are respectively provided with "L"-shaped rubber pads 18, which can prevent the outer casing from being impacted when worn or dropped.
  • the battery body includes an inner casing 2 and a plurality of battery cells 3, and the inner casing 2 has a rectangular parallelepiped, and the inner casing 2 includes a first side plate 21 that is spaced back and forth and a second side plate 22, a third side plate 23 and a fourth side plate 24 spaced apart from each other, the third side plate 23 connecting the left end of the first side plate 21 and the left end of the second side plate 22, The fourth side plate 24 connects the right end of the first side plate 21 and the right end of the second side plate 22, and the first side plate 21 and the second side plate 22 constitute the inner casing 2
  • the side wall, the third side plate 23 and the fourth side plate 24 constitute an end wall of the inner casing 2.
  • the inner casing 2 is provided with a plurality of partitions 25 spaced apart in the left-right direction, and the front end and the rear end of each of the partitions 25 are respectively opposite to the first side plate 21 and the second side plate
  • the inner casing 2 and the plurality of the partition plates 25 define a plurality of mutually spaced accommodating spaces 26, and the plurality of battery cells 3 are respectively disposed in the plurality of accommodating spaces 26.
  • the heat conducting component 4 includes two groups, and two sets of the heat conducting components 4 are circumferentially spaced along the battery body, and each set of the heat conducting components 4 includes a first heat conducting component thermally connected to each other. 41 and the second heat conducting member 42 and the heat pipe 43.
  • the first heat conducting member 41 is thermally connected to the side wall of the inner casing 2, and the first heat conducting member 41 has a flat shape.
  • the second heat conducting member 42 is adjacent to the end wall, the second heat conducting member 42 is thermally connected to the outer casing, and the second heat conducting member 42 has a flat shape.
  • each set of the heat conducting assembly 4 includes three heat pipes 43, each of the heat pipes 43 including a first end and a second end bently connected to the first end, the heat pipe
  • the first end of the heat exchanger 43 is connected to the first heat conducting member 41, and the second end of the heat pipe 43 is connected to the second heat conducting member 42.
  • the second heat conducting member 42 is provided with a recess 421, and the second end of the heat pipe 43 is fitted in the recess 421, so that the heat pipe 43 and the second heat conducting member 42 can be enlarged. Heat exchange area.
  • the three heat pipes 43 are spaced apart in the up and down direction, and the first end of each of the heat pipes 43 is along the length direction of the first heat conducting member 41 ("the length direction of the first heat conducting member 41" means the a first heat conducting member 41 extends in a direction extending in a circumferential direction of the inner casing 2, and a second end of each of the heat pipes 43 is along a length direction of the second heat conducting member 42 ("the second heat conducting The length direction of the member 42 " extends in the direction in which the second heat conducting member 42 extends in the circumferential direction of the inner casing 2).
  • the first heating member 5 is a heating plate or a heating film, and the first heating member 5 includes a plurality of.
  • the second heating member 6 is a heating plate or a heating film, and the second heating member 6 includes two.
  • a plurality of the first heating members 5 are respectively attached to the left and right side walls of the plurality of partitions 25, and the two second heating members 6 are respectively attached. Attached to the two second heat conducting members 42 of the two heat conducting components 4.
  • two sets of the thermally conductive components 4 are assembled.
  • the first ends of the three heat pipes 43 of each set of the heat conducting assemblies 4 are connected to the first heat conducting member 41 and the second end of the heat pipes 43 are fitted to the grooves of the second heat conducting member 42 Within 421.
  • the maximum planes of the two of the two heat conducting components 4 are respectively attached to the first side plate 21 of the inner casing 2 and
  • two of the two sets of the heat conducting components 4 are adjacent to the third side plate 23 and the fourth side plate 24 of the inner casing 2, respectively, and
  • the side wall of the second heat conducting member 42 to which the second heating member 6 is attached faces the inner casing 2.
  • the battery body and the heat-conducting component 4 assembled as described above are placed in the outer casing, and two of the two second heat-conducting members 42 of the heat-conducting component 4 are respectively attached to the housing.
  • the inner wall of the left side plate 13 of the outer casing and the inner wall of the right side plate 14 are described.
  • a plurality of the battery cells 3 are placed in the plurality of the accommodating spaces 26 of the inner casing 2, respectively.
  • control assembly 7 is placed above the battery body, and the control assembly 7 is respectively connected to the plurality of the first heating members 5 and the two second heating members 6 by a wire harness.
  • the temperature sensor and the plurality of battery cells 3 are electrically connected.
  • the top cover 15 is placed on the top of the outer casing, and the battery module 100 is assembled.
  • the battery module 100 can be quickly preheated in a low temperature environment and then charged.
  • the discharge ensures that the battery module 100 can be normally charged and discharged in a low temperature environment and can improve the charge and discharge performance of the battery module 100.
  • the battery module 100 can be used to generate the battery body through the heat conduction component 4 in a high temperature environment. The heat is transferred to the outer casing, so that the heat generated by the battery body can be effectively dissipated in a timely manner, thereby prolonging the service life, stability and safety of the battery module 100.
  • the first heat conducting member 41 and the second heat conducting member 42 in the heat conducting component 4 are all arranged in a flat shape, which can increase the heat conduction area and improve the heat conduction effect.
  • the heat pipe 43 is connected between the first heat conducting member 41 and the second heat conducting member 42 so that the heat pipe 43 can be used for rapid heat conduction and can be recycled.
  • first heating member 5 and the second heating member 6 are arranged as a heating film or a heating plate, heating efficiency and uniformity of heating can be improved.
  • the heat conducting component 4 includes a plurality of sets, and the plurality of sets of the heat conducting components 4 are spaced apart along a height direction of the battery body.
  • each set of thermally conductive components 4 may include only one heat pipe 43, and the heat pipe 43 may be formed in a flat tubular shape.
  • the second heating member 6 may be a semiconductor heating sheet (or a semiconductor refrigerating sheet), and the semiconductor heating sheet is attached to the two second heat conducting portions of the two thermally conductive members 4. Between the member 42 and the outer casing, the semiconductor heating sheet can change the direction of current passing therethrough such that one side of the semiconductor heating sheet toward the battery body is a heating surface.
  • a charging and discharging control method of the battery module 100 according to an embodiment of the present invention will be described below.
  • the charging and discharging control method of the battery module 100 includes the following steps:
  • the control component 7 receives a temperature signal sent by the temperature sensor, wherein the temperature signal is generated by the temperature sensor according to a temperature of the battery body.
  • the temperature of the battery body is an average temperature of the plurality of battery cells 3.
  • the control component 7 determines the temperature Tx corresponding to the received temperature signal, wherein the temperature Tx can represent the temperature of the battery body, and when the temperature Tx does not exceed the temperature T0, the control component 7 controls Said The first heating element 5 heats the battery body, and the control component 7 controls the second heating element 6 to heat the heat conducting component 4, wherein the temperature T0 is a temperature threshold, for example, may be 15 ° C -20 ° C.
  • the control component 7 can control the heating of the first heating element 5 and the second heating element 6, so that the battery body can be quickly preheated, thereby The battery module 100 can be ensured to have a suitable temperature before charging and discharging to ensure the charge and discharge performance of the battery module 100.
  • the temperature of the battery body is detected by the temperature sensor before the battery module 100 is charged and discharged, and the detected temperature of the battery body does not exceed the set temperature.
  • the control component 7 controls the heating of the first heating element 5 and the second heating element 6, so that the battery body can be preheated in a low temperature environment, and the charging and discharging control method is simple and reliable, and the battery module 100 can be guaranteed to be normal. Charging and discharging can be performed and the charge and discharge performance of the battery module 100 can be improved.
  • the control component 7 controls the first heating member 5 not to heat the battery body, and the control component 7 controls the The second heating element 6 does not heat the thermally conductive component 4. Thereby, it is possible to prevent the battery body from being overheated and to prevent waste of energy.
  • the battery body needs to be preheated.
  • the temperature of the battery body is heated to the temperature T0, the battery body can be charged and discharged, and the battery body generates heat during charging and discharging.
  • the control assembly 7 controls the first heating member 5 and the second heating member 6 to stop heating, so that the temperature of the battery body can be maintained within a suitable range, and Energy waste can be avoided.
  • the battery body in a high temperature environment, when the temperature of the battery body is greater than the temperature T0, the battery body does not need to be preheated at this time, and the control component 7 controls the first heating element 5 and the second heating element 6 not to be heated. Thereby, the battery body can be prevented from being overheated.
  • a drone according to an embodiment of the third aspect of the present invention includes: the battery module 100 according to the first aspect of the present invention, wherein the battery module 100 can power the drone.
  • the overall performance of the drone can be improved.

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Abstract

一种无人机、电池模组(100)及充放电控制方法，电池模组(100)包括：设在外壳体内的电池本体、导热地连接于外壳体和电池本体之间导热组件(4)、用于对电池本体加热的第一加热件(5)、用于对导热组件(4)加热的第二加热件(6)、用于侦测电池本体的温度并根据侦测到的电池本体的温度产生温度信号的温度传感器、用于接收温度信号以及根据温度信号控制第一加热件(5)和第二加热件(6)的控制组件(7)。

Description

无人机、电池模组及充放电控制方法 技术领域
本发明涉及电池技术领域，尤其是涉及一种无人机、电池模组及充放电控制方法。
背景技术
温度对电池影响表现在两个方面；在低温环境下，比如冬季，电池容量减少，电池中的温度过低不利于电池的电化学反应，化学反应速度较慢能量易丢失不能满足使用要求，且在低温环境下电池充放电性能也较正常温度差，甚至当电池温度低于一定值时电池不能直接充电，面临低温充电存在的安全隐患；当环境温度上升，电池容量增加，电池内部的化学反应明显加剧，且反应速率和温度呈级数关系，温度升高会使得电池内阻变小，电池效率得到提升。但是，较高的温度同样加速了有害反应，易损坏电极也易产生过充，尤其在高温的夏季，电池产热速率大于散热速率，大量热量聚集电池升温，如果所述热量不能够有效散去，对电池的容量、寿命、使用稳定性以及安全性的影响更为显著。
因此，温度对电池性能有至关重要的影响，电池温度的差异性决定着电池的使用寿命、稳定性和安全性能。相关技术中的动力电池模组，无论在高温环境还是低温环境，散热装置都在为动力电池散热，动力电池的散热结构复杂且散热效率并不能够令人满意，导致电池模组的成本上升且电池模组寿命、使用稳定性以及安全性得不到保证。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明提出一种电池模组，该电池模组结构简单、散热效果好且可以对电池进行预热、性能稳定、使用寿命长、安全性能高。
本发明还提出了一种上述电池模组的充放电控制方法。
本发明还提出一种具有上述电池模组的无人机。
根据本发明第一方面实施例的电池模组，包括：电池本体；外壳体，所述电池本体设在所述外壳体内；导热组件，所述导热组件导热地连接于所述外壳体和所述电池本体之间；第一加热件，所述第一加热件连接于所述电池本体，所述第一加热件用于对所述电池本体进行加热；第二加热件，所述第二加热件连接于所述导热组件，所述第二加热件用于对所述导热组件进行加热；温度传感器；所述温度传感器用于侦测所述电池本体的温度，以及用于根据侦测到的所述电池本体的温度产生温度信号；控制组件，所述控制组件分别电性连接于所述第一加热件、所述第二加热件和所述温度传感器，所述控制组件用于接收所述 温度信号，以及用于根据所述温度信号控制所述第一加热件和所述第二加热件。
根据本发明实施例的电池模组，通过设置的第一加热件用于对电池本体进行加热，并且通过设置的导热组件导热地连接于外壳体和电池本体之间，并设置第二导热件用于对导热组件进行加热，同时通过设置的温度传感器侦测电池本体的温度，由此电池模组的控制组件可以根据温度传感器反馈的温度信号控制第一加热件和第二加热件加热或停止加热，从而可以在环境温度较低时控制第一加热件和第二加热件加热，其中第一加热件可以直接对电池本体进行加热，第二加热件可以通过导热组件将热量传递给电池本体，从而可以在低温环境下对电池本体进行预热，保证电池模组可以正常的进行充放电且可以提高电池模组的充放电性能；在环境温度较高时控制第一加热件和第二加热件停止加热，并通过导热组件将电池本体产生的热量传递至外壳体，从而可以及时快速地将电池本体产生的热量有效地散去，进而可以延长电池模组的使用寿命、使用稳定性及安全性。
在一些优选实施例中，所述导热组件包括彼此导热连接的第一导热件和第二导热件，所述电池本体包括侧壁和连接于所述侧壁的一端的端壁，所述第一导热件导热地连接于所述侧壁，所述第二导热件邻近于所述端壁，所述第二导热件与所述外壳体导热连接。
在一些优选实施例中，所述导热组件还包括热管，所述热管包括第一端及弯折地连接于所述第一端的第二端，所述热管的第一端与所述第一导热件相连，所述热管的第二端与所述第二导热件相连。
在一些优选实施例中，所述热管包括多个，所述多个热管间隔设置，每个所述热管的第一端沿所述第一导热件的长度方向延伸，每个所述热管的第二端沿所述第二导热件的长度方向延伸。
在一些优选实施例中，所述第一加热件的加热功率小于所述第二加热件的加热功率。
在一些优选实施例中，所述导热组件包括多组，多组所述导热组件沿所述电池本体的周向或高度方向间隔设置。
在一些优选实施例中，所述第二加热件为加热板或加热膜或半导体加热片。
在一些优选实施例中，所述电池本体包括内壳体和多个电池单体，所述内壳体包括所述端壁和所述侧壁，所述内壳体内限定出多个相互间隔开的收容空间，多个所述电池单体分别设于所述多个收容空间内。
根据本发明第二方面实施例的上述电池模组的充放电控制方法，包括如下步骤：S01、所述控制组件接收所述温度传感器发出的温度信号，其中，所述温度信号是所述温度传感器根据所述电池本体的温度而产生的；S02、当所述温度信号对应的温度Tx不超过温度T0时，所述控制组件控制所述第一加热件对所述电池本体进行加热，所述控制组件控制所述第二加热件对所述导热组件进行加热，其中所述温度T0为温度阈值。
根据本发明实施例的上述电池模组的充放电控制方法，在电池模组进行充放电之前通过温度传感器侦测电池本体的温度，在侦测的电池本体的温度不超过设定的温度阈值时，控制组件控制第一加热件和第二加热件加热，从而可以在低温环境中对电池本体进行预热，该充放电控制方法简单、可靠，可以保证电池模组正常的进行充放电且可以提高电池模组的充放电性能。
在一些优选实施例中，当所述温度Tx超过所述温度T0时，所述控制组件控制所述第一加热件不对所述电池本体进行加热，所述控制组件控制所述第二加热件不对所述导热组件进行加热。
在一些优选实施例中，所述温度T0为15℃-20℃。
根据本发明第三方面实施例的无人机，包括：根据本发明上述第一方面实施例的电池模组。
根据本发明实施例的无人机，通过设置上述的电池模组，可以提高无人机的整体性能。
附图说明
图1是根据本发明实施例的电池模组的纵向剖视图；
图2是根据本发明实施例的电池模组的横向剖视图；
图3是根据本发明实施例的电池模组的部分结构图；
图4是图3中A处的放大图；
图5是根据本发明实施例的电池模组的电池本体与导热组件的装配图；
图6是根据本发明实施例的电池模组的电池本体与导热组件的另一个角度的装配图；
图7是根据本发明实施例的电池模组的电池本体的结构图。
附图标记：
电池模组100；
前侧板11；后侧板12；左侧板13；右侧板14；顶盖15；第一筋条16；第二筋条17；橡胶垫18；
内壳体2；第一侧板21；第二侧板22；第三侧板23；第四侧板24；隔板25；收容空间26；
电池单体3；
导热组件4，第一导热件41；第二导热件42；凹槽421；热管43；
第一加热件5；第二加热件6；
控制组件7。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
下面参考图1-图7描述根据本发明实施例的电池模组100。
如图1-图7所示，根据本发明实施例的电池模组100，包括：电池本体、外壳体、导热组件4、第一加热件5、第二加热件6、温度传感器和控制组件7。
具体而言，所述电池本体设在所述外壳体内，所述导热组件4导热地连接于所述外壳体和所述电池本体之间，所述导热组件4可以传递热量。例如，所述导热组件4可以将所述电池本体上的热量传递至所述外壳体上，所述导热组件4也可以将热量传递至所述电池本体上。
所述第一加热件5用于对所述电池本体进行加热，所述第一加热件5可以设在所述电池本体上。在所述第一加热件5工作时，所述第一加热件5可以直接对所述电池本体加热。
所述第二加热件6用于对所述导热组件4进行加热，所述第二加热件6可以设在所述导热组件4上。在所述第二加热件6工作时，所述第二加热件6可以对所述导热组件4加热。由于所述导热组件4导热地连接于所述外壳体和所述电池本体之间，所述导热组件4可以将热量传递至所述电池本体。
所述温度传感器用于侦测所述电池本体的温度，以及用于根据侦测到的所述电池本体的温度产生温度信号，所述温度传感器可以设在所述电池本体上。
所述控制组件7分别电性连接于所述第一加热件5、所述第二加热件6和所述温度传感器，所述控制组件7用于接收所述温度信号，以及用于根据所述温度信号控制所述第一加热件5和所述第二加热件6。也就是说，所述控制组件7可以根据所述温度传感器侦测到的所述电池本体的温度产生的温度信号控制所述第一加热件5和所述第二加热件6加热或停止加热。
其中，所述第一加热件5的加热功率可以小于所述第二加热件6的加热功率。由此，在控制组件7控制第一加热件5和第二加热件6加热时，可以保证第二加热件6加热的导热组件4的温度大于第一加热件5加热的电池本体的温度，从而可以保证导热组件4可以将热量传递至电池本体，防止导热组件4温度低于电池本体而使得电池本体的热量传递至外壳体上散发出去，避免能源浪费。
例如，在温度较高的环境中(例如夏季)，在所述电池模组100工作的过程中，所述电池本体产生大量的热量，所述温度传感器侦测到所述电池本体的温度较高，所述温度传感器将所述温度信号传递给所述控制组件7，所述控制组件7控制所述第一加热件5和所述第二加热件6不工作。此时，所述导热组件4可以将所述电池本体的热量传递至所述外壳体，最终热量通过所述外壳体向外界环境散去，由此可以及时有效地将所述电池本体产生的热量向外界环境散去，从而可以延长电池模组100的使用寿命、使用稳定性及安全性。
又例如，在温度较低的环境中(例如冬季)，所述电池本体的温度较低，不利于所述电池本体的化学反应甚至不能直接充放电。所述温度传感器侦测到所述电池本体的温度较低，所述温度传感器将所述温度信号传递给所述控制组件7，所述控制组件7控制所述第一加热件5和所述第二加热件6工作。其中，所述第一加热件5可以直接对所述电池本体进行加热，从而可以快速地提高所述电池本体的温度，同时所述第二加热件6加热所述导热组件4，所述导热组件4可以将热量传递至所述电池本体，由此通过设置的所述第一加热件5和所述第二加热件6，可以对所述电池本体快速且均匀地加热。在所述电池本体的温度达到设定的温度值时，所述电池模组100可以进行充放电工作，同时所述控制组件7可以控制所述第一加热件5和所述第二加热件6停止加热，从而可以在低温环境下对电池本体进行快速预热，保证电池模组100可以正常的进行充放电且可以提高电池模组100的充放电性能。
根据本发明实施例的电池模组100，通过设置的第一加热件5用于对电池本体进行加热，并且通过设置的导热组件4导热地连接于外壳体和电池本体之间，并设置第二导热件42用于对导热组件4进行加热，同时通过设置的温度传感器侦测电池本体的温度，由此电池模组100的控制组件7可以根据温度传感器反馈的温度信号控制第一加热件5和第二加热件6加热或停止加热，从而可以在环境温度较低时控制第一加热件5和第二加热件6加 热，其中第一加热件5可以直接对电池本体进行加热，第二加热件6可以通过导热组件4将热量传递给电池本体，从而可以在低温环境下对电池本体进行预热，保证电池模组100可以正常的进行充放电且可以提高电池模组100的充放电性能；在环境温度较高时控制第一加热件5和第二加热件6停止加热，并通过导热组件4将电池本体产生的热量传递至外壳体，从而可以及时快速地将电池本体产生的热量有效地散去，进而可以延长电池模组100的使用寿命、使用稳定性及安全性。
下面参照图1-图7详细描述根据本发明实施例的电池模组100。
参照图1-图7，所述电池模组100包括：电池本体、外壳体、导热组件4、第一加热件5、第二加热件6、温度传感器和控制组件7。
参照图1和图2，所述外壳体大体呈长方体，所述外壳体包括前后间隔设置的前侧板11和后侧板12、左右间隔设置的左侧板13和右侧板14以及封盖所述外壳体顶部的顶盖15，所述左侧板13连接所述前侧板11的左端和所述后侧板12的左端，所述右侧板14连接所述前侧板11的右端和所述后侧板12的右端，所述左侧板13的下部和所述右侧板14的下部均向内凹陷。所述外壳体的底部由多条水平设置的第一筋条16相互交错构成，多条相互交错的所述第一筋条16上还设有多条竖直设置的第二筋条17以增强所述外壳体的底部的强度。所述外壳体的八个角上分别设有“L”形橡胶垫18，所述橡胶垫18可以防止所述外壳体受到磨损或跌落时受到冲击。
参照图1-图7，所述电池本体包括内壳体2和多个电池单体3，所述内壳体2呈长方体，所述内壳体2包括前后间隔设置的第一侧板21和第二侧板22、左右间隔设置的第三侧板23和第四侧板24，所述第三侧板23连接所述第一侧板21的左端和所述第二侧板22的左端，所述第四侧板24连接所述第一侧板21的右端和所述第二侧板22的右端，所述第一侧板21和所述第二侧板22构成所述内壳体2的侧壁，所述第三侧板23和所述第四侧板24构成所述内壳体2的端壁。所述内壳体2内设有多个沿左右方向间隔开设置的隔板25，每个所述隔板25的前端和后端分别与所述第一侧板21和所述第二侧板22相连，所述内壳体2与多个所述隔板25共同限定出多个相互间隔开的收容空间26，多个所述电池单体3分别设于所述多个收容空间26内。
参照图1-图6，所述导热组件4包括两组，两组所述导热组件4沿所述电池本体的周向间隔设置，每组所述导热组件4包括彼此导热连接的第一导热件41和第二导热件42以及热管43。所述第一导热件41导热地连接于所述内壳体2的侧壁，所述第一导热件41呈平板状。所述第二导热件42邻近于所述端壁，所述第二导热件42与所述外壳体导热连接，所述第二导热件42呈平板状。
继续参照图3-图6，每组所述导热组件4包括三个热管43，每个所述热管43包括第一端及弯折地连接于所述第一端的第二端，所述热管43的第一端与所述第一导热件41相连，所述热管43的第二端与所述第二导热件42相连。其中，所述第二导热件42上设有凹槽421，所述热管43的第二端配合在所述凹槽421内，从而可以增大所述热管43与所述第二导热件42的换热面积。所述三个热管43沿上下方向间隔设置，每个所述热管43的第一端沿所述第一导热件41的长度方向(“所述第一导热件41的长度方向”是指所述第一导热件41的沿所述内壳体2的周向延伸的方向)延伸，每个所述热管43的第二端沿所述第二导热件42的长度方向(“所述第二导热件42的长度方向”是指所述第二导热件42的沿所述内壳体2的周向延伸的方向)延伸。
参照图1、图3-图6，所述第一加热件5为加热板或加热膜，所述第一加热件5包括多个。所述第二加热件6为加热板或加热膜，所述第二加热件6包括两个。
下面参照图1-图7描述根据本发明实施例的电池模组100的装配过程。
参照图5-图7，将多个所述第一加热件5分别贴附在多个所述隔板25的左侧壁和右侧壁上，将两个所述第二加热件6分别贴附在两个所述导热组件4的两个所述第二导热件42上。
参照图3-图6，将两组所述导热组件4进行装配。将每组所述导热组件4中的三个所述热管43的第一端与所述第一导热件41相连且所述热管43的第二端配合在所述第二导热件42的凹槽421内。两组所述导热组件4装配完成后，将两组所述导热组件4中的两个所述第一导热件41的最大平面分别贴附在所述内壳体2的第一侧板21和第二侧板22上，将两组所述导热组件4中的两个所述第二导热件42分别邻近所述内壳体2的第三侧板23和第四侧板24，且使得所述第二导热件42的贴附有所述第二加热件6的侧壁朝向所述内壳体2。
参照图1和图2，将上述装配的所述电池本体和所述导热组件4放置于所述外壳体内，两组所述导热组件4的两个所述第二导热件42分别贴附在所述外壳体的所述左侧板13的内壁上和所述右侧板14的内壁上。将多个所述电池单体3分别置于所述内壳体2的多个所述收容空间26内。
参照图1和图3，将所述控制组件7放置于所述电池本体的上方，通过线束将所述控制组件7分别与多个所述第一加热件5、两个述第二加热件6、所述温度传感器以及多个所述电池单体3电连接。最后，将所述顶盖15盖设在所述外壳体的顶部，所述电池模组100装配完成。
本发明的有益效果：
1)通过设置的第一加热件5、第二加热件6和导热组件4，并通过设置的温度传感器和控制组件7，可以使电池模组100在低温环境下进行快速预热后再进行充放电，保证电池模组100在低温环境下可以正常的进行充放电且可以提高电池模组100的充放电性能；同时可以使电池模组100在高温环境中，可以通过导热组件4将电池本体产生的热量传递至外壳体，从而可以及时快速地将电池本体产生的热量有效地散去，进而可以延长电池模组100的使用寿命、使用稳定性及安全性。
2)将导热组件4中的第一导热件41和第二导热件42均设置成平板状，可以增大导热面积，提高导热效果。
3)通过设置的热管43连接在第一导热件41和第二导热件42之间，可以利用热管43原理进行快速地导热且可以循环利用。
4)通过将第一加热件5和第二加热件6设置成加热膜或加热板，可以提高加热效率和加热的均匀性。
5)通过使第一加热件5的加热功率可以小于第二加热件6的加热功率，在对电池本体进行加热时，可以保证热量从第二加热件6传递至电池本体，保证加热效率同时避免能源浪费。
在其他的实施例中，所述导热组件4包括多组，多组所述导热组件4沿所述电池本体的高度方向间隔设置。
在其他的实施例中，每组导热组件4可以仅包括一个热管43，热管43可以形成为扁管状。
在其他的实施例中，所述第二加热件6可以为半导体加热片(或半导体制冷片)，所述的半导体加热片贴附在两个所述导热组件4的两个所述第二导热件42与外壳体之间，所述半导体加热片可以改变通过其的电流方向致使所述半导体加热片朝向所述电池本体的一面为制热面。
下面描述根据本发明实施例的电池模组100的充放电控制方法。
所述的电池模组100的充放电控制方法，包括如下步骤：
S01、所述控制组件7接收所述温度传感器发出的温度信号，其中，所述温度信号是所述温度传感器根据所述电池本体的温度而产生的。在电池本体包括多个电池单体3时，所述电池本体的温度为多个所述电池单体3的平均温度。
S02、所述控制组件7将接收到的温度信号对应的的温度Tx进行判断，其中所述温度Tx可以代表电池本体的温度，当所述温度Tx不超过温度T0时，所述控制组件7控制所述 第一加热件5对所述电池本体进行加热，所述控制组件7控制所述第二加热件6对所述导热组件4进行加热，其中所述温度T0为温度阈值，例如，可以为15℃-20℃。
例如，在温度传感器检测到电池本体的温度Tx不超过所述温度T0，此时控制组件7可以控制第一加热件5和第二加热件6加热，从而可以快速对电池本体进行预热，从而可以保证电池模组100在充放电之前具有合适的温度，保证电池模组100的充放电性能。
根据本发明实施例的上述电池模组100的充放电控制方法，在电池模组100进行充放电之前通过温度传感器侦测电池本体的温度，在侦测的电池本体的温度不超过设定的温度阈值时，控制组件7控制第一加热件5和第二加热件6加热，从而可以在低温环境中对电池本体进行预热，该充放电控制方法简单、可靠，可以保证电池模组100正常的进行充放电且可以提高电池模组100的充放电性能。
在本发明的一些实施例中，当所述温度Tx超过所述温度T0时，所述控制组件7控制所述第一加热件5不对所述电池本体进行加热，所述控制组件7控制所述第二加热件6不对所述导热组件4进行加热。由此，可以防止电池本体过热，并且可以防止能源浪费。
例如，在低温环境下需要对电池本体进行预热，在电池本体的温度加热到所述温度T0时，此时电池本体可以进行充放电，电池本体在充放电的过程中产生热量。在电池本体的温度大于所述温度T0时，所述控制组件7控制所述第一加热件5和所述第二加热件6停止加热，从而可以使电池本体的温度保持在适宜范围内，并且可以避免能源浪费。
又例如，在高温环境下，电池本体的温度大于所述温度T0时，此时不需要对电池本体进行预热，此时控制组件7控制第一加热件5和第二加热件6不加热，从而可以防止电池本体过热。
根据本发明第三方面实施例的无人机，包括：根据本发明上述第一方面实施例的电池模组100，所述电池模组100可以为所述无人机提供动力。
根据本发明实施例的无人机，通过设置上述的电池模组100，可以提高无人机的整体性能。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的， 不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (12)

  1. 一种电池模组，其特征在于，包括：
    电池本体；
    外壳体，所述电池本体设在所述外壳体内；
    导热组件，所述导热组件导热地连接于所述外壳体和所述电池本体之间；
    第一加热件，所述第一加热件连接于所述电池本体，所述第一加热件用于对所述电池本体进行加热；
    第二加热件，所述第二加热件连接于所述导热组件，所述第二加热件用于对所述导热组件进行加热；
    温度传感器；所述温度传感器用于侦测所述电池本体的温度，以及用于根据侦测到的所述电池本体的温度产生温度信号；
    控制组件，所述控制组件分别电性连接于所述第一加热件、所述第二加热件和所述温度传感器，所述控制组件用于接收所述温度信号，以及用于根据所述温度信号控制所述第一加热件和所述第二加热件。
  2. 根据权利要求1所述的电池模组，其特征在于，所述导热组件包括彼此导热连接的第一导热件和第二导热件，所述电池本体包括侧壁和连接于所述侧壁的一端的端壁，所述第一导热件导热地连接于所述侧壁，所述第二导热件邻近于所述端壁，所述第二导热件与所述外壳体导热连接。
  3. 根据权利要求2所述的电池模组，其特征在于，所述导热组件还包括热管，所述热管包括第一端及弯折地连接于所述第一端的第二端，所述热管的第一端与所述第一导热件相连，所述热管的第二端与所述第二导热件相连。
  4. 根据权利要求3所述的电池模组，其特征在于，所述热管包括多个，所述多个热管间隔设置，每个所述热管的第一端沿所述第一导热件的长度方向延伸，每个所述热管的第二端沿所述第二导热件的长度方向延伸。
  5. 根据权利要求1-4中任一项所述的电池模组，其特征在于，所述第一加热件的加热功率小于所述第二加热件的加热功率。
  6. 根据权利要求1-5中任一项所述的电池模组，其特征在于，所述导热组件包括多组，多组所述导热组件沿所述电池本体的周向或高度方向间隔设置。
  7. 根据权利要求1-6中任一项所述的电池模组，其特征在于，所述第二加热件为加热板或加热膜或半导体加热片。
  8. 根据权利要求2所述的电池模组，其特征在于，所述电池本体包括内壳体和多个电 池单体，所述内壳体包括所述端壁和所述侧壁，所述内壳体内限定出多个相互间隔开的收容空间，多个所述电池单体分别设于所述多个收容空间内。
  9. 一种根据权利要求1-8中任一项所述的电池模组的充放电控制方法，其特征在于，包括如下步骤：
    S01、所述控制组件接收所述温度传感器发出的温度信号，其中，所述温度信号是所述温度传感器根据所述电池本体的温度而产生的；
    S02、当所述温度信号对应的温度Tx不超过温度T0时，所述控制组件控制所述第一加热件对所述电池本体进行加热，所述控制组件控制所述第二加热件对所述导热组件进行加热，其中所述温度T0为温度阈值。
  10. 根据权利要求9所述的方法，其特征在于，当所述温度Tx超过所述温度T0时，所述控制组件控制所述第一加热件不对所述电池本体进行加热，所述控制组件控制所述第二加热件不对所述导热组件进行加热。
  11. 根据权利要求9或10所述的方法，其特征在于，所述温度T0为15℃-20℃。
  12. 一种无人机，其特征在于，包括：根据权利要求1-8中任一项所述的电池模组。
PCT/CN2017/112824 2016-12-02 2017-11-24 无人机、电池模组及充放电控制方法 Ceased WO2018099327A1 (zh)

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