CN108511847B - Temperature control device and power supply system - Google Patents
Temperature control device and power supply system Download PDFInfo
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- CN108511847B CN108511847B CN201810303793.2A CN201810303793A CN108511847B CN 108511847 B CN108511847 B CN 108511847B CN 201810303793 A CN201810303793 A CN 201810303793A CN 108511847 B CN108511847 B CN 108511847B
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- liquid inlet
- inlet pipe
- pipe
- extrusion plate
- battery module
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- 239000007788 liquid Substances 0.000 claims abstract description 151
- 238000001125 extrusion Methods 0.000 claims abstract description 70
- 230000008859 change Effects 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
- 230000008602 contraction Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Classifications
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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
- H01M10/613—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
- H01M10/04—Construction or manufacture in general
- H01M10/0422—Cells or battery with cylindrical casing
-
- 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
- H01M10/63—Control systems
- H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
-
- 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
- H01M10/643—Cylindrical cells
-
- 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
- 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
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The embodiment of the invention provides a temperature control device and a power supply system. The temperature control device is applied to the battery module. The device comprises a liquid inlet pipe, a liquid outlet pipe, a flat pipe and a flow control assembly. The liquid inlet pipe and the liquid outlet pipe are respectively arranged at two ends of the flat pipe, the flat pipe comprises a liquid flow channel, and the liquid inlet pipe and the liquid outlet pipe are communicated with the flat pipe. The liquid inlet pipe is embedded in the flow control component. The flow control assembly comprises a thermosensitive structure and an extrusion plate, the thermosensitive structure is connected with the extrusion plate, and the thermosensitive structure drives the extrusion plate to move according to the temperature in the battery module to change extrusion acting force on the liquid inlet pipe so as to control the flow of the liquid inlet pipe to realize temperature control on the battery module. Therefore, the extrusion acting force received by the liquid inlet pipe is adjusted according to the temperature in the battery module, and the liquid inlet flow of the liquid inlet pipe is changed, so that the temperature of the battery module is controlled.
Description
Technical Field
The invention relates to the technical field of temperature control, in particular to a temperature control device and a power supply system.
Background
In case of too low a temperature, the battery cannot provide energy, and therefore the battery must be heated to be at an operating temperature to normally supply power. And a large amount of heat can be generated in the charging and discharging process of the battery, and the heat can not be absorbed, so that the temperature exceeds the working temperature of the battery, the service life and the use safety of the battery are further influenced, and the battery is required to be subjected to heat dissipation treatment at the moment. Therefore, it is desirable to provide a means for controlling the temperature of the battery to ensure proper operation of the battery.
Disclosure of Invention
In order to overcome the above-mentioned shortcomings in the prior art, an object of an embodiment of the present invention is to provide a temperature control device and a power supply system, which can adjust extrusion acting force applied to a liquid inlet pipe according to temperature in a battery module, and change liquid inlet flow of the liquid inlet pipe, so as to control temperature of the battery module.
The embodiment of the invention provides a temperature control device which is applied to a battery module and comprises a liquid inlet pipe, a liquid outlet pipe, a flat pipe and a flow control component,
the liquid inlet pipe and the liquid outlet pipe are respectively arranged at two ends of the flat pipe, the flat pipe comprises a liquid flow channel, and the liquid inlet pipe and the liquid outlet pipe are communicated with the flat pipe;
the liquid inlet pipe is embedded in the flow control assembly;
the flow control assembly comprises a thermosensitive structure and an extrusion plate, the thermosensitive structure is connected with the extrusion plate, and the thermosensitive structure drives the extrusion plate to move according to the temperature in the battery module to change extrusion acting force on the liquid inlet pipe so as to control the flow of the liquid inlet pipe to realize temperature control on the battery module.
Optionally, in an embodiment of the present invention, the flow control assembly further comprises a fixed plate,
the fixed plate and the extrusion plate are arranged oppositely, wherein the extrusion plate can move relative to the fixed plate so as to change the distance between the two ends of the extrusion plate and the fixed plate;
the thermosensitive structure and the liquid inlet pipe are arranged between the fixed plate and the extrusion plate.
Optionally, in an embodiment of the present invention, the liquid inlet pipe includes a first liquid inlet pipe and a second liquid inlet pipe,
the first liquid inlet pipe and the second liquid inlet pipe are connected with the flat pipe in a parallel mode, wherein the first liquid inlet pipe is used for cooling, and the second liquid inlet pipe is used for heating.
Optionally, in an embodiment of the present invention, the flow control assembly further includes a fixing member, the extrusion plate includes a first extrusion plate, a second extrusion plate and a rotation portion,
the rotating part is connected with the fixing piece and can rotate relative to the fixing piece;
the first extrusion plate is connected with the second extrusion plate through the rotating part, wherein the first extrusion plate is connected with the thermosensitive structure, and the thermosensitive structure changes the extrusion state of the extrusion plate to the first liquid inlet pipe and the second liquid inlet pipe by driving the first extrusion plate to move when expanding or contracting.
Optionally, in an embodiment of the present invention, the fixing member includes a fixing shaft and a supporting member,
the fixed shaft is connected with a supporting piece, wherein the supporting piece is connected with the fixed plate;
the rotating part is sleeved on the fixed shaft and can rotate relative to the fixed shaft.
Optionally, in an embodiment of the present invention, the support member is disposed between adjacent first liquid inlet pipe and second liquid inlet pipe.
Optionally, in an embodiment of the present invention, the thermosensitive structure and the first liquid inlet pipe are disposed on the same side of the support member.
Optionally, in an embodiment of the present invention, the liquid inlet tube is made of a flexible material.
Optionally, in an embodiment of the present invention, the apparatus further comprises a bulb and a pressure tube,
one end of the pressure guide pipe is communicated with the thermosensitive structure, and the other end of the pressure guide pipe is communicated with the thermosensitive bag;
the temperature sensing bag is arranged in the battery module and is used for changing the pressure intensity in the thermosensitive structure according to the temperature in the battery module so as to expand or contract the thermosensitive structure.
The embodiment of the invention provides a power supply system, which comprises a battery module and a temperature control device, wherein the temperature control device is used for changing the extrusion acting force of an extrusion plate on a liquid inlet pipe according to the temperature of the battery module so as to control the flow of the liquid inlet pipe to realize the temperature control of the battery module.
Compared with the prior art, the invention has the following beneficial effects:
the embodiment of the invention provides a temperature control device and a power supply system. The temperature control device is applied to the battery module. The device comprises: liquid inlet pipe, drain pipe, flat pipe and flow control subassembly. The liquid inlet pipe and the liquid outlet pipe are arranged at two ends of the flat pipe and are communicated with the liquid flow channel in the flat pipe. Wherein, the feed liquor pipe inlays and establishes in the flow control subassembly. The flow control assembly comprises a thermosensitive structure and a squeeze plate. The temperature-sensitive structure is connected with the extrusion plate, and the temperature-sensitive structure generates volume expansion or volume contraction according to the temperature in the battery module, and the extrusion plate is driven to move through the change of the temperature-sensitive structure, so that extrusion acting force applied by the extrusion plate to the liquid inlet pipe is changed, and the caliber of the liquid inlet pipe for liquid to enter is adjusted. Therefore, the flow of the liquid inlet pipe can be adjusted according to the temperature in the battery module, so that the temperature control of the battery module is realized.
In order to make the above objects, features and advantages of the present invention 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 invention, 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 invention 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 temperature control device according to an embodiment of the present invention.
FIG. 2 is a second schematic diagram of a temperature control device according to an embodiment of the present invention.
Fig. 3 is a schematic view of section i of fig. 2.
Fig. 4 is a schematic structural diagram of a power supply system according to an embodiment of the present invention.
Icon: 10-a power supply system; 100-a temperature control device; 110-a liquid inlet pipe; 111-a first liquid inlet pipe; 112-a second liquid inlet pipe; 120-liquid outlet pipe; 130-flat tube; 150-a flow control assembly; 151-thermosensitive structure; 153-squeeze plate; 1531-a first squeeze plate; 1532-second squeeze plate; 1533-a rotation part; 155-a fixed plate; 158-a stationary shaft; 159-a support; 200-battery module; 210-a sub-module; 211-single battery.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. The components of the embodiments of the present invention 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 invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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 invention.
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.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Some embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of a temperature control device 100 according to an embodiment of the invention, and fig. 2 is a schematic diagram of a second temperature control device 100 according to an embodiment of the invention. The temperature control device 100 includes a liquid inlet pipe 110, a liquid outlet pipe 120, a flat pipe 130 and a flow control assembly 150. The liquid inlet pipe 110 and the liquid outlet pipe 120 are respectively disposed at two ends of the flat pipe 130. The flat tube 130 includes a flow channel, and the liquid inlet tube 110 and the liquid outlet tube 120 are communicated with the flat tube 130, so that the liquid enters the flow channel through the liquid inlet tube 110 and flows out through the liquid outlet tube 120. In the flowing process, the liquid exchanges heat with the battery module 200 through the wall of the flat tube 130, so as to control the temperature of the battery module 200, and avoid that the battery module 200 cannot normally supply electric energy due to abnormal temperature.
In this embodiment, the inlet pipe 110 is embedded in the flow control assembly 150. The flow control assembly 150 may include a thermally sensitive structure 151 and a pressure plate 153. The thermosensitive structure 151 is connected to the pressing plate 153. The thermosensitive structure 151 undergoes volume expansion or volume contraction according to the temperature in the battery module 200. Since the thermosensitive structure 151 is connected to the pressing plate 153, the thermosensitive structure 151 drives the pressing plate 153 to move during the volume expansion or volume contraction. The pressing force applied to the inlet pipe 110 by the pressing plate 153 may be changed when the pressing plate 153 moves. The pressurization force applied to the liquid inlet pipe 110 affects the caliber through which the liquid can flow. Therefore, the thermosensitive structure 151 drives the extrusion plate 153 to move according to the temperature in the battery module 200, changes the extrusion force to the liquid inlet pipe 110, and controls the temperature difference of the battery module 200 within a reasonable range by controlling the flow of the liquid inlet pipe 110.
Wherein, the thermosensitive structure 151 may be connected to the pressing plate 153 by adhesion. The inlet tube 110 may be made of a flexible material (e.g., rubber) such that the inlet tube 110 will change caliber when subjected to a non-zero compressive force.
In this embodiment, the flow control assembly 150 may also include a retaining plate 155. The fixing plate 155 is disposed opposite to the pressing plate 153. Wherein the pressing plate 153 is movable with respect to the fixing plate 155 to change a distance between both ends of the pressing plate 153 and the fixing plate 155. For example, the pressing plate 153 may move upward or downward with respect to the fixing plate 155; alternatively, one end of the pressing plate 153 is close to the fixing plate 155 under the action of force, and the other end is far from the fixing plate 155. Further, the thermosensitive structure 151 and the liquid inlet tube 110 are disposed between the fixing plate 155 and the pressing plate 153, so that the pressing plate 153 can apply different pressing forces to the liquid inlet tube 110 when the volume of the thermosensitive structure 151 changes, thereby changing the liquid flow in the flat tube 130 and realizing temperature control of the battery module 200.
Alternatively, the inlet pipe 110 is only one pipe. If the liquid inlet pipe 110 is used for heating, the liquid for heating may be filled into the liquid flow channel of the flat pipe 130 through the liquid inlet pipe 110. The heat sensitive structure 151 may expand when the temperature of the battery module 200 decreases, and drive the extrusion plate 153 to move, thereby reducing extrusion force applied to the liquid inlet pipe 110, increasing flow rate of the liquid, and increasing the temperature of the battery module 200 through heat exchange between the liquid and the battery module 200. Conversely, the heat sensitive structure 151 may further shrink when the temperature of the battery module 200 increases to drive the extrusion plate 153 to move, so as to increase the extrusion force applied to the liquid inlet pipe 110 and reduce the flow rate of the liquid. Thereby, the temperature difference of the battery module 200 is controlled to be within a low range during the heating of the battery module 200.
If the liquid inlet pipe 110 is used for cooling, the liquid for cooling may be poured into the liquid flow channel of the flat pipe 130 through the liquid inlet pipe 110. The heat sensitive structure 151 may expand when the temperature of the battery module 200 increases, and drive the extrusion plate 153 to move, so as to reduce extrusion force applied to the liquid inlet pipe 110, increase flow rate of the liquid, and reduce the temperature of the battery module 200 through heat exchange between the liquid and the battery module 200. Conversely, the heat sensitive structure 151 may further shrink when the temperature of the battery module 200 decreases, so as to drive the extrusion plate 153 to move, increase the extrusion force applied to the liquid inlet pipe 110, and reduce the flow rate of the liquid. Thereby, the temperature difference of the battery module 200 is controlled to be within a low range during the cooling of the battery module 200.
Optionally, the liquid inlet pipe 110 may further include two pipes, i.e. a first liquid inlet pipe 111 and a second liquid inlet pipe 112. The first liquid inlet pipe 111 and the second liquid inlet pipe 112 are connected to the flat pipe 130 in parallel. Wherein, the first liquid inlet pipe 111 is used for cooling, and the second liquid inlet pipe 112 is used for heating. By changing the opening and closing of the first liquid inlet pipe 111 and the second liquid inlet pipe 112, the temperature of the battery module 200 can be increased or decreased by the same temperature control device 100. For example, the first liquid inlet pipe 111 is connected to a cold water pipe, the second liquid inlet pipe 112 is connected to a hot water pipe, and when the battery module 200 needs to be heated, the first liquid inlet pipe 111 may be closed, and the second liquid inlet pipe 112 may be opened.
Referring to fig. 2 and 3, fig. 3 is a schematic view of the portion i in fig. 2. The flow control assembly 150 may also include a fixture. The squeeze plate 153 may include a first squeeze plate 1531, a second squeeze plate 1532, and a rotation part 1533. The rotating portion 1533 is connected to the fixing member, and the rotating portion 1533 is rotatable with respect to the fixing member. The first squeeze plate 1531 is connected to the second squeeze plate 1532 through the rotation part 1533. The first squeeze plate 1531 is connected to the heat-sensitive structure 151, and the heat-sensitive structure 151 drives the first squeeze plate 1531 to move when expanding or contracting, so as to change the squeeze states of the squeeze plate 153 on the first liquid inlet pipe 111 and the second liquid inlet pipe 112.
In this embodiment, the fixing member may include a fixing shaft 158 and a supporting member 159. The fixed shaft 158 is connected to the supporter 159, and the supporter 159 is connected to the fixed plate 155. The rotating portion 1533 is sleeved on the fixed shaft 158 and can rotate relative to the fixed shaft 158. It will be appreciated that the pressing plate 153 may be rotatable relative to the fixing plate 155 by a number of fixing means. For example, the supporting member 159 may have two rod-shaped structures to support the fixing shaft 158 and be coupled with the fixing plate 155. Alternatively, the supporter 159 includes a supporting plate and a connecting rod, and the supporting plate supports the fixing shaft 158 through the connecting rod.
Further, fixing means (e.g., nuts) may be provided at both ends of the fixing shaft 158 to fix the rotating portion 1533 to the fixing shaft 158, and to ensure that the rotating portion 1533 is rotatable with respect to the fixing shaft 158.
In this embodiment, the supporting member 159 is disposed between the adjacent first liquid inlet pipe 111 and second liquid inlet pipe 112, so that the thermosensitive structure 151 drives the pressing plate 153 to move, thereby changing the pressing force on the first liquid inlet pipe 111 and the second liquid inlet pipe 112.
Alternatively, the thermosensitive structure 151 may be disposed close to the first liquid inlet pipe 111 or close to the second liquid inlet pipe 112 according to the thermal expansion or contraction of the thermosensitive structure 151 or the cold Zhang Resu. In the implementation manner of this embodiment, the heat-sensitive structure 151 may expand with heat and contract with cold, the heat-sensitive structure 151 and the first liquid inlet tube 111 are disposed on the same side of the support 159, and the heat-sensitive structure 151 is far away from the support 159.
For the description of the first liquid inlet pipe 111 and the second liquid inlet pipe 112 during the heating or cooling process, reference may be made to the description of the liquid inlet pipe 110 including only one pipe, which is not repeated herein.
In this embodiment, the temperature control device 100 may further include a temperature sensing bulb and a pressure guiding tube. One end of the pressure guide pipe is communicated with the thermosensitive structure 151, and the other end of the pressure guide pipe is communicated with the thermosensitive package. The temperature sensing bulb is disposed in the battery module 200, and is configured to change the pressure in the thermosensitive structure 151 according to the temperature in the battery module 200, so that the thermosensitive structure 151 expands or contracts, thereby driving the extrusion plate 153 to move. By changing the extrusion force applied to the liquid inlet pipe 110, the cross-sectional area of the flow channel of the liquid inlet pipe 110 is changed, and the flow rate is changed to realize temperature control of the battery module 200. The temperature sensing bulb may be disposed at any position where the temperature in the battery module 200 can be obtained.
Optionally, the material of the temperature sensing bulb, the material of the heat sensitive structure 151 and the position of the heat sensitive structure are correspondingly arranged, so that the extrusion plate 153 is driven to move by the heat sensitive structure 151 in the heating or cooling process, the flow of the liquid inlet pipe 110 is changed, and the temperature difference of the battery module 200 is controlled in a lower range.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a power supply system 10 according to an embodiment of the invention. The power supply system 10 may include a temperature control device 100 and a battery module 200. The temperature control device 100 is configured to change the extrusion force of the extrusion plate 153 on the liquid inlet pipe 110 according to the temperature of the battery module 200, so as to control the flow rate of the liquid inlet pipe 110 to realize temperature control of the battery module 200.
In this embodiment, the flat tube 130 may be bent to form a plurality of mounting areas, and the battery module 200 includes a plurality of sub-modules 210, and each sub-module 210 includes a plurality of unit cells 211. The number of the unit cells 211 included in each sub-module 210 may be the same or different. Each sub-module 210 may be disposed within a mounting area. Thereby, temperature control of the unit cells 211 can be achieved.
In summary, the embodiment of the invention provides a temperature control device and a power supply system. The temperature control device is applied to the battery module. The device comprises: liquid inlet pipe, drain pipe, flat pipe and flow control subassembly. The liquid inlet pipe and the liquid outlet pipe are arranged at two ends of the flat pipe and are communicated with the liquid flow channel in the flat pipe. Wherein, the feed liquor pipe inlays and establishes in the flow control subassembly. The flow control assembly comprises a thermosensitive structure and a squeeze plate. The temperature-sensitive structure is connected with the extrusion plate, and the temperature-sensitive structure generates volume expansion or volume contraction according to the temperature in the battery module, and the extrusion plate is driven to move through the change of the temperature-sensitive structure, so that extrusion acting force applied by the extrusion plate to the liquid inlet pipe is changed, and the caliber of the liquid inlet pipe for liquid to enter is adjusted. Therefore, the flow of the liquid inlet pipe can be adjusted according to the temperature in the battery module, so that the temperature control of the battery module is realized.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A temperature control device is characterized in that the device is applied to a battery module and comprises a liquid inlet pipe, a liquid outlet pipe, a flat pipe and a flow control component,
the liquid inlet pipe and the liquid outlet pipe are respectively arranged at two ends of the flat pipe, the flat pipe comprises a liquid flow channel, and the liquid inlet pipe and the liquid outlet pipe are communicated with the flat pipe;
the liquid inlet pipe is embedded in the flow control assembly;
the flow control assembly comprises a thermosensitive structure and an extrusion plate, the thermosensitive structure is connected with the extrusion plate, and the thermosensitive structure drives the extrusion plate to move according to the temperature in the battery module to change extrusion acting force on the liquid inlet pipe so as to control the flow of the liquid inlet pipe to realize temperature control on the battery module;
wherein the flow control assembly further comprises a fixed plate,
the fixed plate and the extrusion plate are arranged oppositely, wherein the extrusion plate can move relative to the fixed plate so as to change the distance between the two ends of the extrusion plate and the fixed plate;
the thermosensitive structure and the liquid inlet pipe are arranged between the fixed plate and the extrusion plate;
wherein the liquid inlet pipe comprises a first liquid inlet pipe and a second liquid inlet pipe,
the first liquid inlet pipe and the second liquid inlet pipe are connected with the flat pipe in a parallel mode, wherein the first liquid inlet pipe is used for cooling, and the second liquid inlet pipe is used for heating;
the flow control assembly also comprises a fixing piece, the extrusion plate comprises a first extrusion plate, a second extrusion plate and a rotating part,
the rotating part is connected with the fixing piece and can rotate relative to the fixing piece;
the first extrusion plate is connected with the second extrusion plate through the rotating part, wherein the first extrusion plate is connected with the thermosensitive structure, the thermosensitive structure is located between the first extrusion plate and the fixed plate, and the thermosensitive structure changes the extrusion state of the first extrusion plate on the first liquid inlet pipe and the extrusion state of the second extrusion plate on the second liquid inlet pipe by driving the first extrusion plate to move when expanding or contracting.
2. The apparatus of claim 1, wherein the fixing member comprises a fixing shaft and a supporting member,
the fixed shaft is connected with a supporting piece, wherein the supporting piece is connected with the fixed plate;
the rotating part is sleeved on the fixed shaft and can rotate relative to the fixed shaft.
3. The apparatus of claim 2, wherein the device comprises a plurality of sensors,
the support piece is arranged between the adjacent first liquid inlet pipes and the second liquid inlet pipes.
4. The device of claim 1, wherein the inlet tube is made of a flexible material.
5. The apparatus of any one of claims 1-4, further comprising a bulb and a pressure tube,
one end of the pressure guide pipe is communicated with the thermosensitive structure, and the other end of the pressure guide pipe is communicated with the thermosensitive bag;
the temperature sensing bag is arranged in the battery module and is used for changing the pressure intensity in the thermosensitive structure according to the temperature in the battery module so as to expand or contract the thermosensitive structure.
6. The power supply system is characterized by comprising a battery module and the temperature control device according to any one of claims 1-5, wherein the temperature control device is used for changing the extrusion acting force of the extrusion plate on the liquid inlet pipe according to the temperature of the battery module so as to control the flow of the liquid inlet pipe to realize temperature control of the battery module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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