CN214505728U - Battery pack and vehicle with same - Google Patents
Battery pack and vehicle with same Download PDFInfo
- Publication number
- CN214505728U CN214505728U CN202022698757.6U CN202022698757U CN214505728U CN 214505728 U CN214505728 U CN 214505728U CN 202022698757 U CN202022698757 U CN 202022698757U CN 214505728 U CN214505728 U CN 214505728U
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- Prior art keywords
- battery
- control unit
- conductor
- cut
- battery pack
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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
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The utility model discloses a battery package and vehicle that has it. The battery pack includes: a plurality of battery modules; a conductor for electrically connecting the plurality of battery modules; a disconnection control unit that is provided on the conductor between the two battery modules, and that has a conduction state in which the conductor is conducted and a disconnection state in which the conductor is disconnected; the battery management module is used for detecting thermal runaway of the battery module, the battery management module is connected with the cut-off control unit, and the battery management module controls the cut-off control unit to be in the open circuit state when the thermal runaway of the battery module occurs. According to the utility model discloses battery package when taking place the thermal runaway in battery package, can initiatively, timely, cut off the high-voltage circuit in the battery package effectively, the high-voltage circuit of having avoided the battery package takes place short circuit, electric breakdown scheduling problem to be favorable to alleviating heat and stretch, promote the security of battery package.
Description
Technical Field
The utility model relates to an automotive filed particularly, relates to a battery package and vehicle that has it.
Background
In recent years, the market of electric automobiles is continuously expanded, the safety performance of a battery pack of the electric automobile is also widely concerned by people, a plurality of modules are connected in series to form a high-voltage loop in the battery pack, when thermal runaway occurs in the battery pack, the thermal runaway of the battery pack is aggravated by the short circuit and the electric breakdown effect of the high-voltage loop, and the safety performance of the electric automobile is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least. Therefore, the utility model provides a battery package when taking place the thermal runaway in battery package, can initiatively, timely, cut off the high-voltage circuit in the battery package effectively.
The utility model also provides a vehicle of having above-mentioned battery package.
According to the utility model discloses battery package, include: a plurality of battery modules; a conductor for electrically connecting the plurality of battery modules; a disconnection control unit that is provided on the conductor between the two battery modules, and that has a conduction state in which the conductor is conducted and a disconnection state in which the conductor is disconnected; the battery management module is used for detecting thermal runaway of the battery module, the battery management module is connected with the cut-off control unit, and the battery management module controls the cut-off control unit to be in the open circuit state when the thermal runaway of the battery module occurs.
According to the utility model discloses battery package, battery management module are when battery module thermal runaway, and control cuts off the control unit and is in the open circuit state to when taking place thermal runaway in the battery package, can initiatively, timely, cut off the high-voltage circuit in the battery package effectively, the high-voltage circuit of having avoided the battery package takes place short circuit, electric breakdown scheduling problem, thereby is favorable to alleviating heat and stretchs, promotes the security of battery package.
According to the utility model discloses a some embodiments, arbitrary two between the battery module all be provided with on the conductor cut-off control unit.
According to some embodiments of the invention, the conductor is a wire harness.
Further, one end of the cut-off control unit is provided with a first wiring terminal, the other end of the cut-off control unit is provided with a second wiring terminal, the wiring harness comprises a first wiring harness section electrically connected with the battery module and a second wiring harness section electrically connected with the battery module, the first wiring terminal is suitable for being connected with the first wiring harness section, and the second wiring terminal is suitable for being connected with the second wiring harness section.
According to some embodiments of the present invention, the conductor is a copper bar.
Further, the one end that cuts off the control unit has first linking arm, and the other end has the second linking arm, the copper bar include with first the first copper bar section that the battery module electricity is connected and with the second copper bar section that the battery module electricity is connected, first binding post be suitable for with first copper bar section is connected, second binding post be suitable for with second copper bar section is connected.
According to some embodiments of the utility model, cut off the control unit and have the control pencil interface, battery management module through the control pencil with the control pencil interface electricity is connected.
Optionally, the cut-off control unit is an electromagnetic relay, and is in the on state when the electromagnetic relay is powered on, and is in the off state when the electromagnetic relay is powered off.
Optionally, an explosive activated by a firing pin is arranged in the disconnection control unit, and the battery management module controls the firing pin to activate the explosive when the battery module is in thermal runaway, so as to control the disconnection control unit to be in the open circuit state.
According to another aspect embodiment of the present invention, a vehicle includes the above battery pack.
The vehicle and the battery pack have the same advantages compared with the prior art, and the detailed description is omitted.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic diagram of a battery pack;
fig. 2 is a schematic diagram of a conductor and a cut-off control unit.
Reference numerals:
the battery module comprises a battery module 1, a conductor 2, a first copper bar section 21, a second copper bar section 22, a cutting control unit 3, a first connecting arm 31, a second connecting arm 32, a control wire harness interface 33 and a connecting hole 34.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The following describes a battery pack and a vehicle having the same in detail according to embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1, the battery pack includes: a plurality of battery modules 1, a conductor 2, a cut-off control unit 3, a battery management module, wherein the conductor 2 is used for electrically connecting the plurality of battery modules 1, optionally, the conductor 2 is a high-voltage conductor, the high-voltage conductor connects the plurality of battery modules 1 in series to form a high-voltage loop, the cut-off control unit 3 is arranged on the conductor 2 between two battery modules 1, the cut-off control unit 3 has a conducting state for conducting the conductor 2 and a broken state for breaking the conductor 2, the battery management module is used for detecting thermal runaway of the battery modules 1, the battery management module is connected with the cut-off control unit 3, when the battery modules 1 are in thermal runaway, the cut-off control unit 3 is controlled to be in a broken state, that is, when the thermal runaway occurs in the battery pack, the battery management module detects a thermal runaway signal and sends out a thermal runaway early warning, and simultaneously, the battery management module also sends out a cut-off signal to the cut-off control unit 3, the cut-off control unit 3 completes the response and adjusts the state to the open circuit state to cut off the conductors 2 among the plurality of battery modules 1, thereby cutting off the high-voltage connection of the whole battery pack and further avoiding the problems of short circuit, electric breakdown and the like of a high-voltage loop in the battery pack when thermal runaway occurs.
According to the utility model discloses battery package, battery management module are when battery module 1 thermal runaway, and control cuts off the control unit 3 and is located the state of opening circuit to when taking place thermal runaway in the battery package, can initiatively, timely, cut off the high-voltage circuit in the battery package effectively, the high-voltage circuit of having avoided the battery package takes place short circuit, electric breakdown scheduling problem, thereby is favorable to alleviating heat and stretchs, promotes the security of battery package.
The utility model discloses an in some embodiments, all be provided with on the conductor 2 between two arbitrary battery modules 1 and cut off the control unit 3, when arbitrary battery module 1 thermal runaway, all cut off the control unit 3 and all switch over to the state of opening circuit to cut off the electricity between whole battery modules 1 and connect, that is to say, high-voltage loop between two arbitrary battery modules 1 in the battery module 1 all does not switch on, thereby avoid the thermal runaway to cause high-voltage loop short circuit, the electric breakdown scheduling problem, and then be favorable to alleviateing heat and stretch.
In some embodiments of the present invention, the conductor 2 is a wire harness, one end of the disconnection control unit 3 has a first connection terminal, the other end has a second connection terminal, the wire harness includes a first harness section electrically connected to the first battery module 1 and a second harness section electrically connected to the second battery module 1, the first connection terminal is adapted to be connected to the first harness section, the second connection terminal is adapted to be connected to the second harness section, that is, the first harness section is located between the first battery module 1 and the first connection terminal, the second harness section is located between the second battery module 1 and the second connection terminal, that is, the disconnection control unit 3 is connected in series between the first harness section and the second harness section, therefore, the connection and disconnection of the high-voltage loop between the first battery module 1 and the second battery module 1 are realized by controlling the connection and disconnection of the disconnection control unit 3.
Referring to fig. 1 and 2, in other embodiments of the present invention, the conductor 2 is a copper bar, one end of the cut-off control unit 3 has a first connecting arm 31, the other end has a second connecting arm 32, the copper bar includes a first copper bar section 21 electrically connected to the first battery module 1 and a second copper bar section 22 electrically connected to the second battery module 1, the first connecting terminal is suitable for connecting with the first copper bar section 21, the second connecting terminal is suitable for connecting with the second copper bar section 22, that is, the first copper bar section 21 is located between the first battery module 1 and the first connecting arm 31, the second copper bar section 22 is located between the second battery module 1 and the second connecting arm 32, in other words, the cut-off control unit 3 is connected in series between the first copper bar section 21 and the second copper bar section 22, therefore, the connection and disconnection of the high-voltage loop between the first battery module 1 and the second battery module 1 are realized by controlling the connection and disconnection of the disconnection control unit 3.
Optionally, the first connecting arm 31 and the second connecting arm 32 are provided with connecting holes 34, and the connecting holes 34 are adapted to be screwed with the copper bars, so as to facilitate the installation and the disassembly of the cut-off control unit 3.
Referring to fig. 2, the disconnection control unit 3 has a control harness interface 33, the battery management module is electrically connected to the control harness interface 33 through the control harness, and a disconnection signal of the battery management module to the disconnection control unit 3 can be transmitted to the disconnection control unit 3 through the control harness.
The utility model discloses an in some embodiments, cut off the control unit 3 and be electromagnetic relay, be in the on-state when electromagnetic relay circular telegram, be in the off-state when electromagnetic relay cuts off the power supply to realize control conductor 2's on-state.
In one embodiment, one end of the electromagnetic relay is provided with a first connection terminal, the other end of the electromagnetic relay is provided with a second connection terminal, the first connection terminal and the second connection terminal are connected when the electromagnetic relay is powered on, and the first connection terminal and the second connection terminal are disconnected when the electromagnetic relay is powered off.
In another embodiment, the electromagnetic relay has a first connecting arm 31 at one end and a second connecting arm 32 at the other end, the first connecting arm 31 and the second connecting arm 32 are connected when the electromagnetic relay is powered on, and the first connecting arm 31 and the second connecting arm 32 are disconnected when the electromagnetic relay is powered off.
In other embodiments of the utility model, be provided with the explosive through firing pin activation in the control unit that cuts off 3, battery management module is when battery module 1 thermal runaway, control firing pin activation explosive, be in the state of opening circuit with control unit 3, specifically, battery module 1 normally works, control unit 3 is in the on-state that cuts off, when battery module 1 thermal runaway, the explosive of firing pin activation of control unit 3 is cut off in the control of battery management module, the explosive will burst and cut off control unit 3, in order to realize that conductor 2 between two battery modules 1 opens circuit.
According to the utility model discloses the vehicle of on the other hand embodiment, including the battery package of above-mentioned embodiment, when taking place the thermal runaway in the battery package, can initiatively, timely, cut off the high-voltage circuit in the battery package effectively, the high-voltage circuit of having avoided the battery package takes place short circuit, electric breakdown scheduling problem to be favorable to alleviating heat and stretch, thereby be favorable to promoting the security of battery package and vehicle.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. A battery pack, comprising:
a plurality of battery modules (1);
a conductor (2) for electrically connecting the plurality of battery modules (1);
a disconnection control unit (3), wherein the disconnection control unit (3) is arranged on the conductor (2) between the two battery modules (1), and the disconnection control unit (3) has a conduction state for conducting the conductor (2) and a disconnection state for disconnecting the conductor (2);
the battery management module is used for detecting thermal runaway of the battery module (1), the battery management module is connected with the cut-off control unit (3), and the battery management module controls the cut-off control unit (3) to be in the open circuit state when the battery module (1) is in the thermal runaway.
2. The battery pack according to claim 1, wherein the cut-off control unit (3) is provided on the conductor (2) between any two of the battery modules (1).
3. The battery pack according to claim 1, wherein the conductor (2) is a wire harness.
4. A battery pack according to claim 3, wherein the disconnection control unit (3) has a first connection terminal at one end and a second connection terminal at the other end, the harness includes a first harness segment electrically connected to a first one of the battery modules (1) and a second harness segment electrically connected to a second one of the battery modules (1), the first connection terminal is adapted to be connected to the first harness segment, and the second connection terminal is adapted to be connected to the second harness segment.
5. Battery pack according to claim 4, characterized in that the conductor (2) is a copper bar.
6. The battery pack according to claim 5, wherein the disconnection control unit (3) has a first connection arm (31) at one end and a second connection arm (32) at the other end, the copper bar comprises a first copper bar section (21) electrically connected to a first one of the battery modules (1) and a second copper bar section (22) electrically connected to a second one of the battery modules (1), the first connection terminal is adapted to be connected to the first copper bar section (21), and the second connection terminal is adapted to be connected to the second copper bar section (22).
7. Battery pack according to any of claims 1 to 5, characterized in that the disconnection control unit (3) has a control harness interface (33), the battery management module being electrically connected to the control harness interface (33) via a control harness.
8. The battery pack according to claim 7, wherein the shut-off control unit (3) is an electromagnetic relay that is in the on state when the electromagnetic relay is energized and in the off state when the electromagnetic relay is de-energized.
9. The battery pack according to claim 7, wherein an explosive activated by a striker is provided in the shutdown control unit (3), and the battery management module controls the striker to activate the explosive when the battery module (1) is out of thermal control, so as to control the shutdown control unit (3) to be in the shutdown state.
10. A vehicle characterized by comprising a battery pack according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022698757.6U CN214505728U (en) | 2020-11-19 | 2020-11-19 | Battery pack and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022698757.6U CN214505728U (en) | 2020-11-19 | 2020-11-19 | Battery pack and vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214505728U true CN214505728U (en) | 2021-10-26 |
Family
ID=78206481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022698757.6U Active CN214505728U (en) | 2020-11-19 | 2020-11-19 | Battery pack and vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214505728U (en) |
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2020
- 2020-11-19 CN CN202022698757.6U patent/CN214505728U/en active Active
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