CN210723287U - Battery management system - Google Patents
Battery management system Download PDFInfo
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- CN210723287U CN210723287U CN201922046666.1U CN201922046666U CN210723287U CN 210723287 U CN210723287 U CN 210723287U CN 201922046666 U CN201922046666 U CN 201922046666U CN 210723287 U CN210723287 U CN 210723287U
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- heat exchange
- battery
- battery pack
- management system
- exchange structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model provides a battery management system. The battery management system comprises a battery heating module, a battery cooling module and a battery pack loop; the battery pack loop comprises a battery pack, a first heat exchange structure and a second heat exchange structure, and the liquid outlet end of the battery pack is communicated with the liquid inlet end of the battery pack through the first heat exchange structure and the second heat exchange structure in sequence; the battery heating module comprises a heating structure, and the heating structure is arranged opposite to the battery pack so as to heat the battery pack; the battery cooling module comprises a cooling structure, and the cooling structure and the first heat exchange structure are arranged oppositely to cool the first heat exchange structure. The utility model discloses it is great to have solved battery management system's among the prior art energy consumption effectively, and the shorter problem of life of compressor.
Description
Technical Field
The utility model relates to a vehicle-mounted battery technical field particularly, relates to a battery management system.
Background
At present, the cooling mode of battery packs of pure electric passenger cars, buses, logistics vehicles, heavy trucks or light trucks is as follows: adopt the compressor to cool off the refrigerant, the refrigerant after the cooling exchanges heat with the battery package to cool off the battery package, as long as the battery package has the refrigeration demand promptly, the compressor just must start, leads to battery management system's whole energy consumption increase, has also reduced the life of compressor.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a battery management system to solve the problem that the energy consumption of the battery management system is large and the service life of the compressor is short in the prior art.
In order to achieve the above object, the present invention provides a battery management system, which includes a battery heating module, a battery cooling module and a battery pack loop; the battery pack loop comprises a battery pack, a first heat exchange structure and a second heat exchange structure, and the liquid outlet end of the battery pack is communicated with the liquid inlet end of the battery pack through the first heat exchange structure and the second heat exchange structure in sequence; the battery heating module comprises a heating structure, and the heating structure is arranged opposite to the battery pack so as to heat the battery pack; the battery cooling module comprises a cooling structure, and the cooling structure and the first heat exchange structure are arranged oppositely to cool the first heat exchange structure.
Further, the battery cooling module further includes: and the battery cooling loop is communicated with the second heat exchange structure so as to cool the second heat exchange structure.
Furthermore, the heating structure is arranged close to the battery pack, and the heating structure is an electric heating film, an infrared heater or a resistance heater.
Further, the battery pack loop further comprises: the liquid outlet end of the battery pack is communicated with the first heat exchange structure through the first pipeline; the pump body structure is arranged on the first pipeline.
Further, cooling structure is the fan, and first heat transfer structure includes the heat transfer body, and the fan sets up with the heat transfer body relatively to cool off the heat transfer body, the battery package return circuit still includes: and the first heat exchange structure is communicated with the second heat exchange structure through a second pipeline, the antifreeze liquid discharged from the liquid outlet end enters the first heat exchange structure through the first pipeline, and the antifreeze liquid and the heat exchange body complete heat exchange and then flow into the second heat exchange structure through the second pipeline.
Furthermore, the battery cooling loop comprises a compressor, a condenser and an expansion valve which are connected in sequence, the battery cooling loop also comprises a third pipeline and a fourth pipeline, and the expansion valve is connected with the second heat exchange structure through the third pipeline and the fourth pipeline; the refrigerant entering the expansion valve enters the second heat exchange structure through the third pipeline, and the refrigerant in the second heat exchange structure flows into the expansion valve through the fourth pipeline so as to enter the compressor through the expansion valve.
Further, the condenser is arranged opposite to the cooling structure, and the cooling structure cools the condenser; wherein, the condenser is located between first heat transfer structure and the cooling structure.
Further, the battery management system further includes: the control module is connected with the compressor; the temperature detection device is connected with the control module to detect the surface temperature of the battery pack, when the surface temperature of the battery pack is greater than or equal to a preset temperature, the temperature detection device sends a signal to the control module, and the control module controls the compressor to start after receiving the signal.
Further, the second heat exchange structure is a plate heat exchanger.
Further, the battery pack loop further comprises: and the liquid inlet end of the battery pack is communicated with the second heat exchange structure through the fifth pipeline.
Use the technical scheme of the utility model, when needs cool off the battery package, start cooling structure, cooling structure cools off the cooling to first heat transfer structure to reduce the temperature of the refrigerant of battery package of flowing through, and then reduce the surface temperature of battery package. When the battery pack needs to be heated, the heating structure is started and is arranged opposite to the battery pack so as to heat the battery pack. Therefore, the battery pack is easier and more convenient to operate by heating or cooling the battery pack by the workers, and the operation difficulty is reduced.
Compared with the prior art in which the compressor must be started when the battery pack is cooled, the battery management system in the application can start the cooling structure when the battery pack is cooled, so that the problems that the energy consumption of the battery management system is large and the service life of the compressor is short in the prior art are solved, the starting frequency of the compressor is reduced, the service life of the compressor is prolonged, and the energy consumption of the battery management system is reduced.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural diagram of an embodiment of a battery management system according to the present invention.
Wherein the figures include the following reference numerals:
10. a battery pack; 20. a first heat exchange structure; 30. a second heat exchange structure; 40. a heating structure; 50. a cooling structure; 60. a first pipeline; 70. a pump body structure; 80. a second pipeline; 90. a compressor; 100. a condenser; 110. an expansion valve; 120. a third pipeline; 130. a fourth pipeline; 140. and a fifth pipeline.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present invention, unless otherwise specified, the use of directional words such as "upper and lower" is generally in reference to the orientation shown in the drawings, or to the vertical, perpendicular or gravitational orientation; likewise, for ease of understanding and description, "left and right" are generally to the left and right as shown in the drawings; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself, but the above directional terms are not intended to limit the present invention.
In order to solve the problems that the energy consumption of a battery management system is large and the service life of a compressor is short in the prior art, the application provides the battery management system.
As shown in fig. 1, the battery management system includes a battery heating module, a battery cooling module, and a battery pack circuit. The battery pack loop comprises a battery pack 10, a first heat exchange structure 20 and a second heat exchange structure 30, and the liquid outlet end of the battery pack 10 is communicated with the liquid inlet end of the battery pack 10 through the first heat exchange structure 20 and the second heat exchange structure 30 in sequence. The battery heating module includes a heating structure 40, and the heating structure 40 is disposed opposite to the battery pack 10 to heat the battery pack 10. The battery cooling module includes a cooling structure 50, and the cooling structure 50 is disposed opposite to the first heat exchange structure 20 to cool the first heat exchange structure 20.
By applying the technical scheme of the embodiment, when the battery pack 10 needs to be cooled, the cooling structure 50 is started, and the cooling structure 50 cools the first heat exchange structure 20 to reduce the temperature of the refrigerant flowing through the battery pack 10, so as to reduce the surface temperature of the battery pack 10. When the battery pack 10 needs to be heated, the heating structure 40 is activated, and the heating structure 40 is disposed opposite to the battery pack 10 to heat the battery pack 10. Thus, the arrangement makes the operation of heating or cooling the battery pack 10 easier and simpler for the workers, and reduces the operation difficulty.
Compared with the prior art that the compressor must be started when the battery pack is cooled down, the battery management system in the embodiment starts the cooling structure 50 when the battery pack 10 is cooled down, so that the problems that the energy consumption of the battery management system is large and the service life of the compressor is short in the prior art are solved, the starting frequency of the compressor is reduced, the service life of the compressor is prolonged, and the energy consumption of the battery management system is reduced.
As shown in fig. 1, the battery cooling module further includes a battery cooling circuit. Wherein the battery cooling circuit is in communication with the second heat exchanging structure 30 for cooling the second heat exchanging structure 30. Like this, battery cooling circuit can communicate with second heat transfer structure 30 to carry out heat exchange with second heat transfer structure 30, and then lower the temperature to second heat transfer structure 30, with the temperature of the refrigerant that reduces the flow through battery package 10, and then reduced the surface temperature of battery package 10.
Specifically, when the surface temperature of the battery pack 10 is lower than the preset temperature, the cooling structure 50 is started, and the battery pack 10 is cooled only by the cooling structure 50, so that the energy consumption of the battery pipeline system is reduced, and the compressor does not need to be started; when the surface temperature of the battery pack 10 is greater than or equal to the preset temperature, the battery cooling loop is started, and the battery cooling loop cools the battery pack 10 to realize rapid cooling and improve the working efficiency of the battery management system.
As shown in fig. 1, the heating structure 40 is disposed adjacent to the battery pack 10, and the heating structure 40 is an electric heating film. In this manner, the heating structure 40 is disposed proximate to the cold plate of the battery pack 10 to heat the cold plate and thereby increase the surface temperature of the battery pack 10. Meanwhile, the processing cost of the heating structure 40 is reduced by the type selection of the heating structure 40, so that the overall processing cost of the battery management system is reduced, the reliability of the electric heating film is higher, and the use reliability of the battery management system is improved.
In this embodiment, the electrothermal film is disposed opposite to the cold plate of the battery pack 10 to heat the cold plate. It should be noted that the position where the electrothermal film is disposed is not limited to this, as long as the cold plate can be heated.
It should be noted that the type of the heating structure 40 is not limited thereto. Optionally, the heating structure 40 is an infrared heater or a resistive heater.
As shown in fig. 1, the battery pack circuit further includes a first conduit 60 and a pump body structure 70. Wherein, the liquid outlet end of the battery pack 10 is communicated with the first heat exchange structure 20 through a first pipeline 60. The pump body structure 70 is disposed on the first conduit 60. In this way, the pump body structure 70 can pump the antifreeze discharged from the liquid outlet end of the battery pack 10 into the first heat exchange structure 20, the antifreeze is cooled by the first heat exchange structure 20, and the cooled antifreeze enters the battery pack 10 through the liquid inlet end of the battery pack 10 to cool the battery pack 10, so that the antifreeze flows more easily and smoothly in the battery pack loop, and the heat exchange reliability of the battery management system is improved.
As shown in fig. 1, the cooling structure 50 is a fan, the first heat exchange structure 20 includes a heat exchange body, the fan is disposed opposite to the heat exchange body to cool the heat exchange body, and the battery pack loop further includes a second pipeline 80. The first heat exchange structure 20 is communicated with the second heat exchange structure 30 through a second pipeline 80, the antifreeze discharged from the liquid outlet end enters the first heat exchange structure 20 through the first pipeline 60, and the antifreeze and the heat exchange body complete heat exchange and then flow into the second heat exchange structure 30 through the second pipeline 80. Therefore, the arrangement enables the antifreeze to flow in the battery pack loop more easily and smoothly, and the heat exchange reliability of the battery management system is improved. Meanwhile, the fan is simple in structure, easy to machine and implement, and the machining cost of the cooling structure 50 is reduced.
Specifically, the antifreeze discharged from the liquid outlet end of the battery pack 10 flows into the heat exchange body through the first pipeline 60, is discharged from the heat exchange body after heat exchange with the heat exchange body (after the heat exchange body cools the antifreeze), enters the second pipeline 80, flows into the second heat exchange structure 30 through the second pipeline 80, and enters the battery pack 10 through the liquid inlet end of the battery pack 10 after heat exchange with the second heat exchange structure 30 (after the second heat exchange structure 30 cools the antifreeze), so that the antifreeze in the battery pack loop flows circularly.
As shown in fig. 1, the battery cooling circuit includes a compressor 90, a condenser 100 and an expansion valve 110, which are connected in sequence, and further includes a third pipe 120 and a fourth pipe 130, and the expansion valve 110 is connected to the second heat exchange structure 30 through the third pipe 120 and the fourth pipe 130. The refrigerant entering the expansion valve 110 enters the second heat exchange structure 30 through the third pipeline 120, and the refrigerant in the second heat exchange structure 30 flows into the expansion valve 110 through the fourth pipeline 130, so as to enter the compressor 90 through the expansion valve 110. Thus, when the battery cooling loop is required to cool the battery pack 10, the compressor 90 is started to enable the refrigerant to enter the second heat exchange structure 30 through the compressor 90, and the refrigerant and the antifreeze flowing through the second heat exchange structure 30 perform heat exchange, so that the antifreeze is cooled, and finally the battery pack 10 is cooled.
Specifically, after the compressor 90 is started, the refrigerant is discharged from the discharge port of the compressor 90 into the condenser 100, passes through the condenser 100 and then enters the expansion valve 110, and the refrigerant is throttled by the expansion valve 110 and then enters the second heat exchange structure 30 through the third pipeline 120, so as to cool and cool the antifreeze solution flowing through the second heat exchange structure 30. After that, the refrigerant discharged from the second heat exchange structure 30 enters the air inlet of the compressor 90 via the fourth pipe 130, thereby achieving the circulation flow of the refrigerant in the battery cooling circuit.
As shown in fig. 1, the condenser 100 is disposed opposite to the cooling structure 50, and the cooling structure 50 cools and cools the condenser 100. Wherein the condenser 100 is located between the first heat exchanging structure 20 and the cooling structure 50. Thus, the arrangement enables the first heat exchange structure 20 and the condenser 100 to share one cooling structure 50, thereby reducing the number of parts in the battery management system and increasing the resource utilization rate.
In this embodiment, the battery management system further includes a control module and a temperature detection device. Wherein the control module is connected to the compressor 90. The temperature detection device is connected with the control module to detect the surface temperature of the battery pack 10, and when the surface temperature of the battery pack 10 is greater than or equal to a preset temperature, the temperature detection device sends a signal to the control module, and the control module controls the compressor 90 to start after receiving the signal. Therefore, the battery management system is easier and simpler to control by workers, and the control difficulty is reduced.
Specifically, when the temperature detection device detects that the surface temperature of the battery pack 10 is less than the preset temperature, the compressor 90 does not need to be started, thereby reducing the energy consumption of the battery management system. When the temperature detection device detects that the surface temperature of the battery pack 10 is greater than or equal to the preset temperature, the temperature detection device sends a signal to the control module, and the control module controls the compressor 90 to start after receiving the signal, so as to realize rapid cooling.
In this embodiment, the second heat exchange structure 30 is a plate heat exchanger. Specifically, the plate heat exchanger has the advantages of high heat exchange efficiency, small heat loss, compact and light structure, long service life and the like, and further improves the working efficiency of the battery management system.
As shown in fig. 1, the battery pack circuit further includes a fifth pipe 140. Wherein, the liquid inlet end of the battery pack 10 is communicated with the second heat exchange structure 30 through a fifth pipeline 140. Therefore, the arrangement ensures that the circulation of the antifreeze in the battery pack loop is smoother, and the recycling of the antifreeze is realized.
Specifically, the antifreeze discharged from the liquid outlet end of the battery pack 10 flows into the heat exchange body through the first pipeline 60, is discharged from the heat exchange body after heat exchange with the heat exchange body (after the heat exchange body cools the antifreeze), enters the second pipeline 80, flows into the second heat exchange structure 30 through the second pipeline 80, is discharged from the second heat exchange structure 30 after heat exchange with the second heat exchange structure 30 (after the second heat exchange structure 30 cools the antifreeze), enters the fifth pipeline 140, and enters the battery pack 10 through the fifth pipeline 140, so that the antifreeze in the battery pack loop can flow circularly.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
when the battery pack needs to be cooled, the cooling structure is started, and the cooling structure cools the first heat exchange structure to reduce the temperature of the refrigerant flowing through the battery pack and further reduce the surface temperature of the battery pack. When the battery pack needs to be heated, the heating structure is started and is arranged opposite to the battery pack so as to heat the battery pack. Therefore, the battery pack is easier and more convenient to operate by heating or cooling the battery pack by the workers, and the operation difficulty is reduced.
Compared with the prior art in which the compressor must be started when the battery pack is cooled, the battery management system in the application can start the cooling structure when the battery pack is cooled, so that the problems that the energy consumption of the battery management system is large and the service life of the compressor is short in the prior art are solved, the starting frequency of the compressor is reduced, the service life of the compressor is prolonged, and the energy consumption of the battery management system is reduced.
It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A battery management system is characterized by comprising a battery heating module, a battery cooling module and a battery pack loop;
the battery pack loop comprises a battery pack (10), a first heat exchange structure (20) and a second heat exchange structure (30), and the liquid outlet end of the battery pack (10) is communicated with the liquid inlet end of the battery pack (10) through the first heat exchange structure (20) and the second heat exchange structure (30) in sequence;
the battery heating module comprises a heating structure (40), wherein the heating structure (40) is arranged opposite to the battery pack (10) so as to heat the battery pack (10);
the battery cooling module comprises a cooling structure (50), wherein the cooling structure (50) is arranged opposite to the first heat exchange structure (20) so as to cool the first heat exchange structure (20).
2. The battery management system of claim 1, wherein the battery cooling module further comprises:
a battery cooling circuit in communication with the second heat exchange structure (30) to cool the second heat exchange structure (30).
3. The battery management system of claim 1, wherein the heating structure (40) is disposed proximate to the battery pack (10), the heating structure (40) being an electric heating film, or an infrared heater, or a resistive heater.
4. The battery management system of claim 1, wherein the battery pack loop further comprises:
the liquid outlet end of the battery pack (10) is communicated with the first heat exchange structure (20) through the first pipeline (60);
a pump body structure (70), the pump body structure (70) being disposed on the first conduit (60).
5. The battery management system of claim 4, wherein the cooling structure (50) is a fan, the first heat exchange structure (20) includes a heat exchange body, the fan is disposed opposite to the heat exchange body to cool the heat exchange body, and the battery pack loop further includes:
the first heat exchange structure (20) is communicated with the second heat exchange structure (30) through the second pipeline (80), the antifreeze liquid discharged from the liquid outlet end enters the first heat exchange structure (20) through the first pipeline (60), and the antifreeze liquid and the heat exchange body complete heat exchange and then flow into the second heat exchange structure (30) through the second pipeline (80).
6. The battery management system according to claim 1, wherein the battery cooling circuit comprises a compressor (90), a condenser (100) and an expansion valve (110) connected in series, the battery cooling circuit further comprising a third line (120) and a fourth line (130), the expansion valve (110) being connected to the second heat exchange structure (30) through the third line (120) and the fourth line (130); the refrigerant entering the expansion valve (110) enters the second heat exchange structure (30) through the third pipeline (120), and the refrigerant in the second heat exchange structure (30) flows into the expansion valve (110) through the fourth pipeline (130) to enter the compressor (90) through the expansion valve (110).
7. The battery management system according to claim 6, wherein the condenser (100) is disposed opposite to the cooling structure (50), and the cooling structure (50) cools down the condenser (100); wherein the condenser (100) is located between the first heat exchanging structure (20) and the cooling structure (50).
8. The battery management system of claim 6, further comprising:
a control module connected with the compressor (90);
the temperature detection device is connected with the control module to detect the surface temperature of the battery pack (10), when the surface temperature of the battery pack (10) is larger than or equal to a preset temperature, the temperature detection device sends a signal to the control module, and the control module receives the signal and then controls the compressor (90) to be started.
9. The battery management system of claim 1, wherein the second heat exchange structure (30) is a plate heat exchanger.
10. The battery management system of claim 1, wherein the battery pack loop further comprises:
and the liquid inlet end of the battery pack (10) is communicated with the second heat exchange structure (30) through the fifth pipeline (140).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922046666.1U CN210723287U (en) | 2019-11-22 | 2019-11-22 | Battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922046666.1U CN210723287U (en) | 2019-11-22 | 2019-11-22 | Battery management system |
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| CN210723287U true CN210723287U (en) | 2020-06-09 |
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| CN201922046666.1U Active CN210723287U (en) | 2019-11-22 | 2019-11-22 | Battery management system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111934054A (en) * | 2020-08-17 | 2020-11-13 | 博阳能源科技有限公司 | Solar generator with battery thermal management system |
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2019
- 2019-11-22 CN CN201922046666.1U patent/CN210723287U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111934054A (en) * | 2020-08-17 | 2020-11-13 | 博阳能源科技有限公司 | Solar generator with battery thermal management system |
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