CN113328175A - Battery heating system - Google Patents

Battery heating system Download PDF

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Publication number
CN113328175A
CN113328175A CN202110588898.9A CN202110588898A CN113328175A CN 113328175 A CN113328175 A CN 113328175A CN 202110588898 A CN202110588898 A CN 202110588898A CN 113328175 A CN113328175 A CN 113328175A
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CN
China
Prior art keywords
battery
heating
controller
heating plate
battery pack
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.)
Pending
Application number
CN202110588898.9A
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Chinese (zh)
Inventor
董明明
计翔
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.)
Beijing Institute of Technology BIT
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Beijing Institute of Technology BIT
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Publication date
Application filed by Beijing Institute of Technology BIT filed Critical Beijing Institute of Technology BIT
Priority to CN202110588898.9A priority Critical patent/CN113328175A/en
Publication of CN113328175A publication Critical patent/CN113328175A/en
Pending legal-status Critical Current

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    • 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
    • H01M10/61—Types of temperature control
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of 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
    • H01M10/63—Control systems
    • H01M10/635—Control systems based on ambient 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
    • H01M10/65—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
    • 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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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Automation & Control Theory (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention relates to a battery heating system. The battery heating system includes: a heating plate, a temperature sensor and a controller; the input end of the heating plate is connected with the output end of the controller; the first input end of the controller is connected with the input end of the temperature sensor; the temperature sensor is disposed on the battery pack. The battery pack can be uniformly heated through a special structural design. The temperature sensor is used to give feedback to the controller so that the temperature of the battery is maintained at a substantially constant value. An output interface is led out from the battery pack, the electric energy generated by the battery is used for supplying power to the system, an additional power supply is not needed, the structural design of the battery pack is not needed, and only a corresponding space is needed to be reserved for placing the heating plate.

Description

Battery heating system
Technical Field
The invention relates to the technical field of battery heating control, in particular to a battery heating system.
Background
The current battery heating technologies mainly include the following:
the battery naturally generates heat and heats:
the temperature of the battery is raised by using the heat generated when the battery works, discharges or charges. The heating mode has the problems of slow effect, low battery temperature of vehicles and the like. Except on some early models and some low cost vehicles, have been essentially abandoned by mainstream host plants.
Air blowing heating:
the air-cooled battery pack is not common in the market, and the principle is that an external air conditioner is used for blowing hot air or cold air to control the temperature inside the battery pack. However, this technique requires strict design of the air duct inside the battery pack, the effect of battery temperature rise is relatively slow, and if the design is not good, the local temperature is easily too high.
Heating by heating equipment in the battery pack:
the heating system is mainly composed of a heating element and an electric circuit, wherein the heating element is the most important part. Common heating elements are variable resistance heating elements, commonly known as ptc (positive temperature coefficient) heating elements, and constant resistance heating elements, which are heating films, typically consisting of metal heating wires, such as silicone heating films, flexible electrical heating films, and the like. PTC or the mode of heating the membrane, under the general condition, the heating is effectual, fast, but also can have the inhomogeneous phenomenon of battery temperature rise, and the electric core temperature rise that is close to with the heating source can be obviously higher than the electric core of keeping away from the heating source. In particular, the heating film is closely attached to the surface of the battery module to heat the battery module. Therefore, there is also a certain demand for a heat dissipation structure in the battery pack.
Liquid circulation heating:
the liquid-cooled battery pack occupies a mainstream position in the current design due to the characteristics of good heating effect, uniform heat dissipation distribution, safety, reliability and the like. In the structure of the battery pack, a water channel which is beneficial to heat dissipation is usually designed, so that heat is uniformly dissipated into the battery pack, and the temperature of the battery is uniformly increased. But it has a disadvantage of a slow heating rate.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides a battery heating system.
In order to achieve the purpose, the invention provides the following scheme:
a battery heating system comprising: a heating plate, a temperature sensor and a controller;
the input end of the heating plate is connected with the output end of the controller; the first input end of the controller is connected with the input end of the temperature sensor; the temperature sensor is arranged on the battery pack.
Preferably, the heating plate is a serpentine heating plate;
the snake-shaped heating plate is fixedly arranged along the gap between the storage batteries.
Preferably, the heating plate includes: a conductor, a substrate, and an oil layer;
the conductor is attached to one end face of the substrate; the oil layer is attached to the other end face of the substrate;
the conductor is used for generating an alternating magnetic field; the substrate is used for generating induction current and heating; the oil layer is used for forming a heat conducting medium.
Preferably, the substrate is a metal plate with a preset thickness.
Preferably, the oil layer is sealed by a heat-resistant material.
Preferably, the conductor is a hairpin-shaped metal conductor.
Preferably, the method further comprises the following steps: an AD/DC converter;
the input end of the AD/DC converter is connected with a battery; the output end of the AD/DC converter is connected with the second input end of the controller.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the battery heating system provided by the invention can uniformly heat the battery pack through a special structural design. The temperature sensor is used to give feedback to the controller so that the temperature of the battery is maintained at a substantially constant value. An output interface is led out from the battery pack, the electric energy generated by the battery is used for supplying power to the system, an additional power supply is not needed, the structural design of the battery pack is not needed, and only a corresponding space is needed to be reserved for placing the heating plate.
In addition, through the specific setting of hot plate, utilize the electromagnetic induction principle, form the vortex on the metal surface, improve heating rate.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a battery heating system provided by the present invention;
FIG. 2 is a diagram illustrating an arrangement of a heating plate according to an embodiment of the present invention;
FIG. 3 is a front view of a heating plate provided by an embodiment of the present invention;
fig. 4 is a side view of a heating plate according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a battery heating system with a simple structure, which can quickly and uniformly heat a battery and simultaneously keep the temperature of the battery constant.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1, the present invention provides a battery heating system, comprising: a heating plate 2, a temperature sensor 4 and a controller 6.
The input end of the heating plate 2 is connected with the output end of the controller 6. A first input of the controller 6 is connected to an input of the temperature sensor 4. The temperature sensor 4 is provided on the battery pack 1.
In order to further heat the battery pack 1 rapidly and uniformly, the heating plate 2 used in the present invention is a serpentine heating plate.
The snake-shaped heating plate is fixedly arranged along the gap between the storage batteries. Specifically, a serpentine heating plate is wound on the battery pack 1 in the manner shown in fig. 2 to uniformly heat the battery pack 1.
As shown in fig. 3 and 4, the heating plate 2 used in the present invention includes: a conductor 2-1, a substrate 2-2 and an oil layer 2-3.
The conductor 2-1 is attached to one end surface of the substrate 2-2. The oil layer 2-3 is attached to the other end surface of the substrate 2-2.
The conductor 2-1 is used to generate an alternating magnetic field. The substrate 2-2 serves to generate an induced current and also to generate heat. The oil layers 2-3 are preferably sealed with a heat resistant material for forming a heat conducting medium. In the present invention, the substrate 2-2 is preferably a metal plate having a predetermined thickness. The conductor 2-1 is preferably a hairpin-shaped metal conductor. The preset thickness is adaptively selected according to the size of the induced current required to be generated and the width of the gap between the batteries.
In addition, as shown in fig. 1, in order to facilitate the conversion of the current, the present invention needs to further include: and an AD/DC converter 5.
The input 9 of the AD/DC converter 5 is connected to the battery pack. An output 10 of the AD/DC converter 5 is connected to a second input of the controller 6.
Then, based on the above, the present invention provides a battery heating system in which the battery pack 1, the heating plate 2, the temperature sensor 4, and the like are packaged together to form a battery pack. Based on this, it can be seen in connection with fig. 1 that the input port 8 of the battery pack is the input port of the heater plate 2, which is connected to the output port 12 of the controller 6. The first output port 13 of the battery pack is an output port of the temperature sensor 4, and is connected to the first input port 11 of the controller 6. The second output port 7 of the battery pack is a current transmission port, and is connected to the input port 9 of the AD/DC converter 5. The output port 10 of the AD/DC converter 5 is connected to a second input port 14 of the controller 6.
Based on the above connection relationship, it can be obtained that the battery pack (i.e., the battery pack) is a power source of the electric vehicle. The serpentine heating plate is used for uniformly heating the storage battery pack. The temperature sensor 4 is arranged on the storage battery to monitor the temperature of the battery in real time. The AD/DC converter 5 converts the direct current output from the battery into alternating current. The controller 6 controls the closing of the circuit in accordance with the feedback of the temperature sensor 4.
In summary, the working principle of the battery heating system provided by the invention is as follows:
when the electric signal output by the temperature sensor 4 is lower than the threshold value set by the controller 6, the controller 6 is closed, the system starts to work, and the whole system is powered by the battery. The current output from the battery pack is converted into ac power by a DC/ac converter (AD/DC converter 5) and supplied to the heating plate 2, and a hairpin-type high-conductivity metal conductor is provided on the heating plate 2, and the current flows through the conductor to generate a varying magnetic field, thereby generating an induced current in the metal thin plate on the heating plate 2, heating the metal thin plate, and heating the oil in the oil layer. The oil layer is closely attached to the battery pack 1, thereby heating the battery. The temperature of the battery pack is monitored by the temperature sensor 4 in real time, and when the temperature exceeds a threshold value set by the controller 6, the controller 6 is closed to cut off the circuit.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (7)

1. A battery heating system, comprising: a heating plate, a temperature sensor and a controller;
the input end of the heating plate is connected with the output end of the controller; the first input end of the controller is connected with the input end of the temperature sensor; the temperature sensor is arranged on the battery pack.
2. The battery heating system of claim 1, wherein the heating plate is a serpentine heating plate;
the snake-shaped heating plate is fixedly arranged along the gap between the storage batteries.
3. The battery heating system of claim 2, wherein the heating plate comprises: a conductor, a substrate, and an oil layer;
the conductor is attached to one end face of the substrate; the oil layer is attached to the other end face of the substrate;
the conductor is used for generating an alternating magnetic field; the substrate is used for generating induction current and heating; the oil layer is used for forming a heat conducting medium.
4. The battery heating system according to claim 3, wherein the substrate is a metal plate of a predetermined thickness.
5. The battery heating system according to claim 3, wherein the oil layer is sealed with a heat-resistant material.
6. The battery heating system of claim 3, wherein the conductor is a hairpin-shaped metal conductor.
7. The battery heating system according to claim 1, further comprising: an AD/DC converter;
the input end of the AD/DC converter is connected with a battery; the output end of the AD/DC converter is connected with the second input end of the controller.
CN202110588898.9A 2021-05-28 2021-05-28 Battery heating system Pending CN113328175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110588898.9A CN113328175A (en) 2021-05-28 2021-05-28 Battery heating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110588898.9A CN113328175A (en) 2021-05-28 2021-05-28 Battery heating system

Publications (1)

Publication Number Publication Date
CN113328175A true CN113328175A (en) 2021-08-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110588898.9A Pending CN113328175A (en) 2021-05-28 2021-05-28 Battery heating system

Country Status (1)

Country Link
CN (1) CN113328175A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108448189A (en) * 2018-05-16 2018-08-24 济南保特电子设备有限公司 The accumulator group realization device that low temperature charges
CN108493520A (en) * 2018-04-09 2018-09-04 江西恒动新能源有限公司 A kind of heating means of lithium-ion power battery system
CN108899613A (en) * 2018-06-01 2018-11-27 合肥国轩高科动力能源有限公司 Self-heating circuit of power battery
CN209119278U (en) * 2018-08-23 2019-07-16 苏州德凌迅动力科技有限公司 A kind of power battery pack low-temperature heat charging system
CN210723297U (en) * 2019-11-15 2020-06-09 东北林业大学 Battery heating device of electric automobile

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108493520A (en) * 2018-04-09 2018-09-04 江西恒动新能源有限公司 A kind of heating means of lithium-ion power battery system
CN108448189A (en) * 2018-05-16 2018-08-24 济南保特电子设备有限公司 The accumulator group realization device that low temperature charges
CN108899613A (en) * 2018-06-01 2018-11-27 合肥国轩高科动力能源有限公司 Self-heating circuit of power battery
CN209119278U (en) * 2018-08-23 2019-07-16 苏州德凌迅动力科技有限公司 A kind of power battery pack low-temperature heat charging system
CN210723297U (en) * 2019-11-15 2020-06-09 东北林业大学 Battery heating device of electric automobile

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Application publication date: 20210831

RJ01 Rejection of invention patent application after publication