CN108011065B - Thermal management device and battery module - Google Patents

Thermal management device and battery module Download PDF

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Publication number
CN108011065B
CN108011065B CN201810000771.9A CN201810000771A CN108011065B CN 108011065 B CN108011065 B CN 108011065B CN 201810000771 A CN201810000771 A CN 201810000771A CN 108011065 B CN108011065 B CN 108011065B
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CN
China
Prior art keywords
thermal management
management device
contact plate
expansion
accommodating cavity
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Active
Application number
CN201810000771.9A
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Chinese (zh)
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CN108011065A (en
Inventor
李树民
劳力
王扬
周鹏
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Sinoev Hefei Technologies Co Ltd
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Sinoev Hefei Technologies Co Ltd
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Priority to CN201810000771.9A priority Critical patent/CN108011065B/en
Publication of CN108011065A publication Critical patent/CN108011065A/en
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Classifications

    • 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
    • H01M10/62—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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • 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
    • H01M10/6555—Rods or plates arranged between the 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/20—Pressure-sensitive devices
    • 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

Abstract

The application provides a thermal management device and a battery pack, and relates to the technical field of batteries. According to the thermal management device provided by the embodiment of the application, heat in the battery pack can be absorbed through the internally stored heat storage material, so that the temperature rise of the battery cells in the battery pack is reduced. And through setting up a plurality of expansion structures on each plate body, can be when holding the volume expansion of the heat-retaining material in the cavity, through protruding to holding the cavity outside, make the volume that holds the cavity obtain the increase of certain degree, increase partial volume just can alleviate the pressure that the expansion of heat-retaining material volume brought. So that the heat storage material in the accommodating cavity cannot break the thermal management device.

Description

Thermal management device and battery module
Technical Field
The application relates to the technical field of battery packs, in particular to a thermal management device and a battery module.
Background
The battery pack can be used as a power source of the electric automobile to provide power for the electric automobile. The existing battery pack usually adopts a natural cooling mode, the natural cooling efficiency is lower, and as the battery capacity of the battery pack increases, the heat generated during the operation of the battery pack increases, and the natural cooling cannot realize effective heat management of the battery pack.
Disclosure of Invention
In view of the above, the present application provides a thermal management device and a battery module, which can solve the above problems.
The technical scheme provided by the application is as follows: .
The utility model provides a thermal management device, is applied to the group battery, and this group battery includes a plurality of electric cores, a plurality of electric core layering are arranged, thermal management device sets up between adjacent two-layer electric core, and with electric core contact, and this thermal management device includes first contact plate, second contact plate, wherein:
the first contact plate and the second contact plate are oppositely arranged and are used for being respectively contacted with the battery cells;
the thermal management device further comprises two side plates and two end plates, wherein the two side plates and the two end plates are arranged between the first contact plate and the second contact plate, and the first contact plate, the second contact plate, the two side plates and the two end plates are enclosed to form a containing cavity which is used for containing heat storage substances;
the expansion structure is arranged on the first contact plate, the second contact plate, the two side plates or the two end plates at intervals, protrudes in the direction away from the accommodating cavity when the internal pressure of the accommodating cavity exceeds the preset pressure, and is recessed in the direction close to the accommodating cavity when the internal pressure of the accommodating cavity is smaller than or equal to the preset pressure.
Further, an opening for pouring the heat storage substance into the accommodating cavity is provided on the end plate.
Further, the expansion structure is disposed on the first contact plate or the second contact plate.
Further, the expansion structure is disposed on the side plate.
Further, the expansion structure is dot-shaped or strip-shaped.
Further, the thermal management device further comprises a pressure sensor, the pressure sensor comprises an elastic diaphragm, a thin film resistor covered on the elastic diaphragm and a detection circuit for detecting the resistance value of the thin film resistor, and the elastic diaphragm is covered on one side, far away from the accommodating cavity, of the expansion structure and is at least partially overlapped with the expansion structure.
Further, the battery cell is a cylindrical battery cell, and a plurality of accommodating grooves matched with the battery cell are respectively formed in the two side plates.
Further, the thermal management device comprises a plurality of pressure sensors respectively arranged on one side of the plurality of expansion structures away from the accommodating cavity, and a controller connected with a detection circuit of the plurality of pressure sensors, wherein the controller generates an alarm signal when the number of the pressure sensors detecting the change of the pressure exceeds a preset number.
Further, the thermal management device also comprises an alarm connected with the controller, and the alarm is used for giving an alarm prompt when receiving an alarm signal.
The application also provides a battery pack which comprises a plurality of the thermal management devices and a plurality of battery cells arranged among the thermal management devices.
By adopting the thermal management device provided by the embodiment of the application, heat in the battery pack can be absorbed through the internally stored heat storage material, so that the temperature rise of the battery cells in the battery pack is reduced. And through setting up a plurality of expansion structures on each plate body, can be when holding the volume expansion of the heat-retaining material in the cavity, through protruding to holding the cavity outside, make the volume that holds the cavity obtain the increase of certain degree, increase partial volume just can alleviate the pressure that the expansion of heat-retaining material volume brought. So that the heat storage material in the accommodating cavity cannot break the thermal management device.
In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a thermal management device according to an embodiment of the application.
Fig. 2 is an enlarged schematic view of the section I in fig. 1.
Fig. 3 is a schematic diagram of a plurality of thermal management devices according to an embodiment of the application.
Fig. 4 is a schematic diagram of a battery pack according to an embodiment of the present application.
Icon: 10-thermal management device; 101-a first contact plate; 102-a second contact plate; 103-side plates; 104-end plates; 105-an expanded structure; 20-battery pack.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, an embodiment of the present application provides a thermal management device 10, which is applied to a battery pack 20 shown in fig. 4, where the battery pack 20 includes a plurality of battery cells, and the plurality of battery cells are arranged in layers. The cells in the battery pack 20 may be cylindrical cells, such as 18650 type cells. The cells in the battery pack 20 are arranged side by side, and the axes of the plurality of cells are parallel to each other. In the battery pack 20 using natural cooling, it is also necessary to provide fixing devices at both ends of the electrodes of the plurality of battery cells to fix the plurality of battery cells.
Referring again to fig. 1, in an embodiment of the present application, a plurality of thermal management devices 10 may be disposed in the battery pack 20, and each of the thermal management devices 10 may be disposed between and in contact with two adjacent layers of cells. The thermal management device 10 comprises a first contact plate 101 and a second contact plate 102, wherein the first contact plate 101 and the second contact plate 102 are oppositely arranged and are used for being respectively contacted with the electric core.
The thermal management device 10 in the embodiment of the present application further includes two side plates 103 and two end plates 104 disposed between the first contact plate 101 and the second contact plate 102, where the first contact plate 101, the second contact plate 102, the two side plates 103 and the two end plates 104 enclose a containing cavity, and the containing cavity is used for containing the heat storage material.
The first contact plate 101, the second contact plate 102, the two side plates 103 and the two end plates 104 enclose a receiving cavity, so that the thermal management device 10 has a space in which a thermal management substance can be received. Meanwhile, each thermal management device 10 is arranged between two adjacent layers of battery cells, so that the thermal management device 10 can be used as a device for carrying out thermal management on the battery cells and a device for fixing the battery cells. Because each two adjacent thermal management devices 10 can clamp the battery cell between the two thermal management devices, the position of the battery cell can be limited by the two thermal management devices 10 without moving.
The thermal management device 10 of the present embodiment may be provided with a receiving cavity into which a heat storage substance, such as paraffin or other materials, may be poured during the manufacturing process, and the heat storage substance may absorb external heat when the external temperature is higher than the external temperature. For example, paraffin can be solid when the external temperature is low, and can absorb external heat to be changed into a softened state after the external temperature is increased. In addition, the accommodating cavity can be filled with other phase change materials. In the working process of the battery pack 20, the thermal management device 10 can absorb heat generated by discharging the battery cell, so that the temperature rise of the battery cell is lower, the heat accumulated in the battery pack 20 is absorbed by the heat storage material in the accommodating cavity, the thermal management of the battery pack 20 is realized, and the normal working of the battery pack 20 is ensured.
As shown in fig. 2, the first contact plate 101, the second contact plate 102, the two side plates 103 or the two end plates 104 are provided with a plurality of expansion structures 105 arranged at intervals, the expansion structures 105 protrude in a direction away from the accommodating cavity when the internal pressure of the accommodating cavity exceeds a preset pressure, and the expansion structures 105 are recessed in a direction approaching the accommodating cavity when the internal pressure of the accommodating cavity is less than or equal to the preset pressure. As shown in fig. 3, in one battery pack 20, a plurality of thermal management devices 10 are arranged in parallel.
If the first contact plate 101, the second contact plate 102, the two side plates 103 or the two end plates 104 are provided with a smooth surface, the thermal storage material in the thermal management device 10 may expand to some extent in its total volume after absorbing heat, and since the thermal management device 10 seals the inlet for filling the thermal storage material after filling the thermal storage material during the manufacturing process, the accommodating cavity forms a closed chamber. The expansion of the volume of the heat storage material will create a pressure on the individual plates of the thermal management device 10, which expansion pressure may continue to increase as the heat storage material absorbs heat, even if not controlled in time, and even if the thermal management device 10 is burst.
In the thermal management device 10 according to the embodiment of the present application, a plurality of expansion structures 105 are provided on each plate body, and the expansion structures 105 may be a plurality of grooves formed on each plate body, and when the pressure in the accommodating cavity is high, the expansion structures 105 may protrude outside the accommodating cavity, and when the pressure in the accommodating cavity is low, the expansion structures may return to their original state, and the grooves may be formed again. By providing the plurality of expansion structures 105 on each plate body, when the volume of the heat storage material in the accommodating cavity expands, the volume of the accommodating cavity is increased to a certain extent by protruding outside the accommodating cavity, and the pressure caused by the volume expansion of the heat storage material can be relieved by increasing the volume of the accommodating cavity. So that the heat storage material in the receiving cavity does not rupture the thermal management device 10.
It will be appreciated that in one embodiment, the end plate 104 is provided with openings for filling the receiving cavity with the heat storage substance. By providing an opening in the end plate 104, the heat storage substance can be poured into the receiving cavity through the opening. After the filling is completed, the openings in the end plate 104 may be closed in order to avoid leakage of the heat storage substance.
The thermal management device 10 of the present embodiment may be made of plastic material through a blow molding process, or may be made of other materials.
In one embodiment, the expansion structure 105 is disposed on the first contact plate 101 or the second contact plate 102.
The expansion structure 105 disposed on the first contact plate 101 or the second contact plate 102 may be a plate body directly contacting the battery cell during the expansion process, and due to the extrusion of the battery cell, the gap between the first contact plate 101 or the second contact plate 102 and the battery cell is smaller, and the expansion structure 105 may not be completely protruded due to the existence of the battery cell during the protrusion process outside the accommodating cavity, which may hinder the expansion of the expansion structure 105, so that the relief effect of the expansion structure 105 on the increased pressure inside the accommodating cavity is limited.
In another embodiment, the expansion feature 105 is disposed on the side panel 103. Without the side plates 103 being in direct contact with the cells, the expansion structures 105 provided on the side plates 103 can have a larger expansion space. It is immediately possible that the plurality of expansion structures 105 provided on the thermal management device 10 in the embodiment of the present application may have different expansion states due to the difference in the plate bodies. For example, the expansion structure 105 provided on the first contact plate 101 or the second contact plate 102 is protruded to a small extent outside the accommodating cavity, so as to avoid the influence of the battery cell on the expansion structure 105. The expansion structures 105 arranged on the side plates 103 can be protruded to a greater extent, and the expansion structures 105 positioned on different plate bodies can have different protruding degrees by controlling different shapes of the expansion structures 105, so that the expansion structures 105 can be relieved to the greatest extent by protruding outside the containing cavities to relieve the pressure in the containing cavities. The expansion structure 105 is dot-like or stripe-like. Or may be other shapes.
In one embodiment, the thermal management device 10 further comprises a pressure sensor comprising an elastic diaphragm, a sheet resistor covering the elastic diaphragm, and a detection circuit for detecting the resistance value of the sheet resistor, wherein the elastic diaphragm is covered on the side of the expansion structure 105 away from the accommodating cavity and is at least partially overlapped with the expansion structure 105. The detection circuit can generate an alarm signal when detecting that the change value of the resistance value of the thin film resistor exceeds a preset value.
In the embodiment of the present application, when the pressure inside the accommodating cavity increases, the expansion structure 105 protrudes away from the accommodating cavity, and when the expansion structure 105 protrudes outside the accommodating cavity, the expansion structure 105 changes the shape of the elastic membrane, and the change of the shape of the elastic membrane changes the resistance value of the thin film resistor covered on the elastic membrane. The detection circuit is used for detecting the resistance change of the film resistor, so that the deformation condition of the accommodating cavity can be indirectly monitored. In the normal state of the thermal management device 10, the expansion structure 105 undergoes limited deformation and only protrudes to a limited extent in a direction away from the receiving cavity. This allows the value of the change in the resistance of the film detected by the detection circuit to be within a limited range, and if the value of the change in the resistance of the film is changed within a limited range, it indicates that the pressure inside the thermal management device 10 fluctuates within a normal range, and that no pressure exceeding the accommodation limit occurs.
If the value of the change of the resistance of the thin film resistor detected by the detection circuit exceeds the preset value, the elastic membrane is deformed to a greater extent, that is, the expansion structure 105 covered by the elastic membrane is deformed to a greater extent. Only if the expansion structure 105 expands to a large extent in a direction away from the accommodating cavity, the resistance value of the thin film resistor will be influenced by exceeding a preset value. At this time, it indicates that the interior of the accommodating cavity bears a great degree of pressure, if such pressure continues to increase, the thermal management device 10 may burst, and at this time, the detection circuit may generate an alarm signal to timely alarm, so that other control systems timely cool or otherwise control the battery pack 20 corresponding to the alarm detection circuit, so as to avoid the occurrence of leakage and danger of the thermal management device 10.
It can be understood that, in the embodiment of the present application, the battery cell is a cylindrical battery cell, and the first side plate 103 and the second side plate 103 are respectively provided with a plurality of accommodating grooves matched with the battery cell. Each cell can be placed in the accommodating groove, the cell is fixed through the accommodating groove, and the radian of the accommodating groove can be matched with the radian of the outer wall of the cell, so that the cell can be fully contacted with the cell, and more effective heat management is realized.
In one embodiment, the thermal management device 10 includes a plurality of pressure sensors disposed on a side of the plurality of expansion structures 105 away from the receiving cavity, respectively, and the thermal management device 10 further includes a controller coupled to the detection circuit of the plurality of pressure sensors, the controller generating an alarm signal when the number of pressure sensors detecting a pressure change exceeds a preset number.
The thermal management device 10 further comprises an alarm connected to the controller for alerting upon receipt of an alarm signal.
As previously implemented, by providing an elastic membrane and a sheet resistance, monitoring of the deformation state of the expanded structure 105 can be achieved. In addition, monitoring of the deformation state of the expansion structure 105 can also be achieved by providing pressure sensors. It will be appreciated that the expansion structure 105 provided on a thermal management device 10 in accordance with an embodiment of the present application may be provided in a plurality of different ways by providing pressure sensors on the expansion structure 105 at specific locations. Each pressure sensor may cover one or more expansion structures 105. When the pressure in the accommodating cavity increases to make the expansion structure 105 protrude outside the accommodating cavity, the protruding expansion structure 105 applies a certain pressure to the pressure sensor to make the pressure detected by the pressure sensor change. By monitoring whether the pressure of the plurality of pressure sensors changes, if the pressure detected by the pressure sensors exceeds a preset number, the preset number can be preset, at the moment, the expansion structures 105 exceeding the preset number are deformed to protrude out of the accommodating cavity, the pressure in the accommodating cavity is greatly changed compared with the normal state, at the moment, the controller can generate an alarm signal, and an alarm connected with the controller is used for giving an alarm prompt when the alarm signal is received. Other devices may also perform emergency cooling or the like on the battery pack 20 after receiving the alarm signal.
The present application also provides a battery pack 20 including a plurality of the thermal management devices 10, and a plurality of battery cells disposed between the plurality of the thermal management devices 10.
In summary, by adopting the thermal management device in the embodiment of the application, the heat in the battery pack can be absorbed by the heat storage material stored in the battery pack, so as to reduce the temperature rise of the battery cells in the battery pack. And through setting up a plurality of expansion structures on each plate body, can be when holding the volume expansion of the heat-retaining material in the cavity, through protruding to holding the cavity outside, make the volume that holds the cavity obtain the increase of certain degree, increase partial volume just can alleviate the pressure that the expansion of heat-retaining material volume brought. So that the heat storage material in the accommodating cavity cannot break the thermal management device.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (6)

1. The utility model provides a thermal management device, its characterized in that is applied to the group battery, this group battery includes a plurality of electric cores, a plurality of electric core layering are arranged, thermal management device sets up between adjacent two-layer electric core, and with electric core contact, this thermal management device includes first contact plate, second contact plate, wherein:
the first contact plate and the second contact plate are oppositely arranged and are used for being respectively contacted with the battery cells;
the thermal management device further comprises two side plates and two end plates, wherein the two side plates and the two end plates are arranged between the first contact plate and the second contact plate, and the first contact plate, the second contact plate, the two side plates and the two end plates are enclosed to form a containing cavity which is used for containing heat storage substances;
the first contact plate or the second contact plate is provided with a plurality of expansion structures which are arranged at intervals, the expansion structures protrude in a direction away from the accommodating cavity when the internal pressure of the accommodating cavity exceeds a preset pressure, and the expansion structures are sunken in a direction close to the accommodating cavity when the internal pressure of the accommodating cavity is smaller than or equal to the preset pressure;
an opening for pouring the heat storage material into the accommodating cavity is formed in the end plate;
the thermal management device comprises a plurality of pressure sensors, wherein the pressure sensors are respectively arranged on one side of the expansion structures, which is far away from the accommodating cavity, and the thermal management device further comprises a controller connected with a detection circuit of the pressure sensors, and the controller generates an alarm signal when the number of the pressure sensors for detecting the change of the pressure exceeds the preset number.
2. The thermal management device of claim 1, wherein the expansion structure is dot-like or stripe-like.
3. The thermal management device of claim 1, wherein the pressure sensor comprises an elastic diaphragm, a sheet resistor overlying the elastic diaphragm, and a detection circuit for detecting a resistance of the sheet resistor, the elastic diaphragm overlying the expansion structure on a side thereof remote from the receiving cavity and at least partially coinciding with the expansion structure.
4. The thermal management device of claim 1, wherein the battery cell is a cylindrical battery cell, and a plurality of accommodating grooves matched with the battery cell are respectively arranged on the two side plates.
5. The thermal management device of claim 1, further comprising an alarm coupled to the controller, the alarm configured to alert upon receipt of an alarm signal.
6. A battery pack comprising a plurality of thermal management devices of any one of claims 1 to 5, and a plurality of electrical cells disposed between a plurality of the thermal management devices.
CN201810000771.9A 2018-01-02 2018-01-02 Thermal management device and battery module Active CN108011065B (en)

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CN106711553A (en) * 2017-02-24 2017-05-24 华霆（合肥）动力技术有限公司 Battery module and battery module heat management system
CN206685510U (en) * 2017-04-14 2017-11-28 华霆（合肥）动力技术有限公司 Heat-transfer device and supply unit
CN106972127A (en) * 2017-05-18 2017-07-21 华霆（合肥）动力技术有限公司 Thermal management device of battery and battery modules
CN107331911A (en) * 2017-05-18 2017-11-07 华霆（合肥）动力技术有限公司 Thermal management device of battery and electrokinetic cell
CN207637880U (en) * 2018-01-02 2018-07-20 华霆（合肥）动力技术有限公司 Heat management device and battery modules

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