CN208157498U - Parallel-connection network, battery modules, battery pack heating system - Google Patents
Parallel-connection network, battery modules, battery pack heating system Download PDFInfo
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- CN208157498U CN208157498U CN201820504685.7U CN201820504685U CN208157498U CN 208157498 U CN208157498 U CN 208157498U CN 201820504685 U CN201820504685 U CN 201820504685U CN 208157498 U CN208157498 U CN 208157498U
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- parallel
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- connection network
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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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Abstract
This application discloses a kind of new structural parallel-connection network, the battery modules of this parallel-connection network of configuration, for the battery pack heating system of aforementioned battery modules.Wherein parallel-connection network is for being assemblied in battery modules to be connected in parallel multiple battery cells, and parallel-connection network is conductive material heating up after being powered, and the parallel-connection network includes at least one anode connection terminal and at least one cathode connection terminal.The application is not necessarily to additionally configure special heating element for battery modules, is directly heated using the parallel-connection network heating power of battery modules itself to battery, and scheme is ingenious easy, and structure is simple, easy to implement, not will increase the self weight of mould group, overall cost decline.
Description
Technical field
This application involves a kind of parallel-connection network, the battery modules of this parallel-connection network of configuration, for the battery of aforementioned battery modules
Packet heating system.
Background technique
Lithium ion battery is high with its specific power, energy density is big, and the service life is long, and self-discharge rate is low excellent with storage time length etc.
Point, becomes the focus of research, and gradually replaces the batteries such as conventional lead acid, ni-mh, ni-Cd and move towards power battery market.As new energy
Source battery, lithium-ion-power cell move towards to be faced with unlimited opportunities and challenges on the road of power market.Lithium under low temperature
The decaying of ion battery charge/discharge capacity, power-performance decline.0 DEG C hereinafter, the output performance of lithium ion battery is impacted, -20
The performance of battery has apparent deterioration when DEG C low temperature below, can only release the 30% of rated capacity in -40 DEG C of batteries.More dislike
It is bad, it charges at 0 DEG C or less, it may occur that analysis lithium, battery have interior short risk, and there are serious security risks.This is very big
It is limited in degree in the popularization and application in weather severe cold region.
Problem is used for lithium-ion-power cell low temperature, industry proposes several solutions, and summary is got off, heating side
Case is divided into two classes more：
A kind of heat protocol：Using PTC, resistance wire or carbon materials etc. as main heater element, outer surface coats aluminum plastic film,
Silica gel, the protective layers such as PI film are generally made as heating tape, heating plate and column and add according to battery module shape and service condition
Hot device etc., system is generally by battery management system, relay, fuse, battery pack, heating unit and several temperature sensing
Device composition, implementation is electric heating；Main representative patent has 107681065 A of 205385095 U of CN (peace is leaned on) and CN (fertile
Te Ma).
Another kind of heat protocol：For heat exchange type heating, generally heat-conducting plate, thermal conductive pipe, heat-conducting plate are straight with battery module
It is conductive fluid in contact, heat-conducting plate or runner, under the action of peripheral power source, by the heat transfer of conductive fluid to battery
Module achievees the purpose that promote battery pack temperature.Certainly it is set using the progress integration that generally heating can be freezed of this scheme
It sets, heat is exchanged by liquid circulation, be simple and efficient reliable.Main representative patent has 107666023 A of CN (water Ma) and CN
107196003 A (ChangAn Automobile).
First kind scheme, mass uses in industry, more mature.Second class scheme, have in industry it is many attempt,
Most of enterprise is in exploitation Qualify Phase.From the point of view of present behaviour in service, the above two classes scheme can be effectively
It is heated, solves the problems, such as that battery pack low temperature uses.However no matter any scheme, be required to additionally increase in battery modules
Add corresponding heating equipment, such as heating sheet, fuse, relay, sensor, water pump, water tank, compressor are also or other are dynamic
Power source, this is inevitably present following problems：
1. electrical source of power increased costs；
2. control strategy is more complicated；
3. increasing weight, energy density is reduced；
4. occupying certain space, volume utilization is reduced；
5. heat exchange efficiency is low, temperature uniformity is poor.
Summary of the invention
The purpose of the application is：In view of the above-mentioned problems, to propose a kind of new structural parallel-connection network, configuration this simultaneously for this project
The battery modules of networking, the battery pack heating system for aforementioned battery modules, without additionally being configured specially for battery modules
Heating element, directly battery is heated using the parallel-connection network heating power of battery modules itself.
The technical solution of the application is：
A kind of parallel-connection network, for being assemblied in battery modules to be connected in parallel multiple battery cells, the parallel-connection network is
Heating up conductive material after energization, the parallel-connection network include that at least one anode connection terminal is connected at least one cathode
Terminal.
This parallel-connection network of the application further includes following preferred embodiment based on the above technical solution：
If the parallel-connection network includes several welded discs being distributed in matrix and the dry doubling being connected between these welded discs
It is associated.
A lead is connected in welded disc described in the outermost two of them in position respectively, described in one of them
Lead forms anode connection terminal, another described lead forms the cathode connection terminal.
The outer wheel hub of the parallel-connection network is in rectangle, and anode connection terminal and the cathode connection terminal are arranged in
The diagonal position of the parallel-connection network.
The parallel-connection network is metal material.
A kind of battery modules, including：
If the battery clamp with dry cell plug-in opening,
Several batteries series connection piece being respectively embedded into each battery plug-in opening,
If being inserted respectively into each battery plug-in opening and connecting what piece connected one to one with each battery
Dry single battery, and
The parallel-connection network that piece of connecting with each battery is welded to connect；
The parallel-connection network uses above-mentioned web frame in parallel.
Anode connection terminal and the cathode connection terminal extend out to the side of the battery clamp.
The parallel-connection network of each battery modules is connected in parallel in same power supply circuit.
The positive and negative electrode branch road of each parallel-connection network is connected a relay respectively, and each relay is and together
The connection of one single chip circuit.
The application is woth no need to additionally increase heating sheet, fuse or water pump, the periphery such as water tank, compressor heat management system
System, has the advantage that：
1, without additionally configuring special heating element for battery modules, the Netcom in parallel of battery modules itself is directly utilized
Battery is heated in electricity fever, overall cost decline；
2, multiple battery modules can share the same heating power supply and constitute the heat temperature raising system comprising multiple parallel-connection networks
System, the control strategy of the system is relatively easy, is easy to implement；
3, increase weight without additional, energy density is effectively kept, and under the guiding of new energy policy, product advantage is more
Greatly, course continuation mileage improves；
4, it is not necessarily to occupied space, volume utilization improves；
5, more significantly, heat exchange efficiency effectively mentions for parallel-connection network and the more previous intermediate plate tangent-type contact area of battery core contact area
Height, temperature uniformity are good.
It 6, can be to two layers of monomer battery heating simultaneously of its two sides, wide coverage after one piece of parallel-connection network heating power.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to required use in embodiment description
Attached drawing be briefly described, the drawings in the following description are only some examples of the present application, skill common for this field
For art personnel, without creative efforts, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic perspective view of single battery mould group in the embodiment of the present application；
Fig. 2 is the battery pack structure schematic diagram being made of in the embodiment of the present application multiple battery modules；
Fig. 3 is the structural schematic diagram of parallel-connection network in the embodiment of the present application；
Fig. 4 is the electrical block diagram of battery pack heating system in the embodiment of the present application；
Wherein：1- parallel-connection network, 101- anode connection terminal, 102- cathode connection terminal, 103- welded disc, 104- are in parallel
Band, 2- battery clamp, 201- battery plug-in opening, 3- single battery.
Specific embodiment
Above scheme is described further below in conjunction with specific embodiment.It should be understood that these embodiments are for illustrating
The application and be not limited to limitation scope of the present application.Implementation condition used in the examples can be done according to the condition of specific producer
Further adjustment, the implementation condition being not specified is usually the condition in routine experiment.
Fig. 1 to Fig. 3 shows the specific embodiment of the application, and wherein Fig. 1 is the structure chart of single battery mould group, figure
2 be the battery pack structure comprising this battery modules of multiple Fig. 1, and Fig. 3 is the structure chart of parallel-connection network in this battery modules of Fig. 1,
Fig. 4 is the fever power supply circuit connection figure in battery pack shown in Fig. 2 between each parallel-connection network.
This battery modules shown in FIG. 1, identical with conventional batteries pack arrangement is also to include：With numerous batteries
The battery clamp 2 (or battery bracket) of plug-in opening 201, the multiple batteries series connection being respectively embedded into each battery plug-in opening 201
Piece (is not drawn into) in figure, is inserted respectively into each battery plug-in opening 201 and is connected what piece connected one to one with each battery
Numerous single batteries 3, the parallel-connection network 1 that piece of connecting with each battery is welded to connect.Wherein, battery series connection piece is substantially in have
Round-ended cylinder structure is made of, round egative film and bullet round egative film and the multiple elastic claws for being arranged at intervals on round egative film surrounding
Pawl is that both metal materials are an integral structure, when assembly, by battery series connection piece along the axial insertion battery of battery plug-in opening 201
Plug-in opening 201, then the positive terminal of lower layer's battery is inserted into 201 lower end of battery plug-in opening and the round egative film for piece of connecting with battery
It is welded and fixed, is put into parallel-connection network 1, the round egative film welding for piece that parallel-connection network 1 is connected with each battery, later by upper layer battery
Negative pole end insertion 201 upper end of battery plug-in opening and by battery series connection piece around booth pawl merely ensure that clamping.
The key improvements of this implementation are, above-mentioned parallel-connection network 1 is conductive material heating up after being powered, and the parallel connection
Net includes anode connection terminal 101 and a cathode connection terminal 102.
Specifically, which can generate heat after being passed through electric current to it with certain resistance for metal material
And temperature increases, and then to the single battery heat temperature raising contacted.And anode connection terminal 101 and cathode of parallel-connection network 1
Connection terminal 102 is precisely in order to facilitate it to access power supply circuit.
Identical as traditional web frame in parallel, it also includes crowd that the outer wheel hub of the parallel-connection network 1 in the present embodiment, which is also in rectangle,
The welded disc 103 being mostly distributed in matrix and be connected between these welded discs 103 numerous and associated 104.Wherein welded disc
103 for circle, and and associated 104 be beam shapes.After the assembly is completed, welded disc 103 is connected the circular base of piece with above-mentioned battery
Piece is contacted and is welded, and and associated 104 for by 103 phase downlink connection of welded disc, realize in same layer each single battery and
Connection connection.
It is applied to two conditions of selection gist of voltage swing on parallel-connection network：1. single battery (or battery core) operation uses
60 DEG C of temperature upper limit；2. ensure battery reach before the deadline need the temperature that heats needed for correspondence power.With tradition
Unlike the heating of battery core radial manner, parallel-connection network transmits heat by battery series connection piece, realizes add to battery core in the axial direction
Heat.Each battery core is contacted with the welded disc of parallel-connection network 103, and when heating can ensure that the uniformity of heating temperature.
Since each welded disc 103 of parallel-connection network 1 is distributed in matrix, then its some inevitable welded disc 103 is in
The outermost locations (namely edge of parallel-connection network) of parallel-connection network 1.And the present embodiment is exactly in parallel-connection network edge
A lead is connected in two of them welded disc 103 respectively, one of lead forms above-mentioned anode connection terminal
Son 101, for connecing the positive terminal of power supply circuit, another lead forms above-mentioned cathode connection terminal 102, for connecing power supply
The negative pole end of circuit.After energization, electric current is flowed from anode connection terminal 101 of parallel-connection network to cathode connection terminal 102.
In order to allow electric current that can flow through entire parallel-connection network 1 as homogeneously as possible, the present embodiment is sub by above-mentioned anode connection terminal
101 and cathode connection terminal 102 be arranged in two diagonal positions of parallel-connection network 1, such as Fig. 3.
For more convenient above-mentioned anode connection terminal 101 and the access fever power supply circuit of cathode connection terminal 102, originally
Anode connection terminal 101 of parallel-connection network 1 and cathode connection terminal 102 extend out to battery clamp 2 in embodiment battery modules
Side.
This battery pack of Fig. 2 includes the battery modules of multiple (in figure for 4) above structures, in this four battery modules
Monomer monomer grafting layer by layer, being formed has the large-capacity battery pack (battery pack) for being four times in this battery modules capacity of Fig. 1.
Obviously, just there are four the parallel-connection networks 1 of above structure (three are only depicted in figure for tool altogether for four battery modules in Fig. 2
It is a, one of those is omitted).
Referring to shown in Fig. 4, if a certain battery pack is made of the battery modules of N number of above structure, we can be incited somebody to action
N number of parallel-connection network 1 in this N number of battery modules is connected in parallel in same power supply circuit, and each parallel-connection network 1 is positive and negative
Branch road in pole is connected a relay respectively, and each relay is connect with same single chip circuit.
The meaning of each alphabetic flag is MCU respectively in Fig. 4：Micro-control unit also known as single-chip microcontroller；VCC：Positive pole；
GND：Ground terminal；R1-RN：Parallel-connection network resistance value；Q1-QN,Q1a-QNa：Relay.
Connect respectively on the positive and negative electrode branch road of each parallel-connection network 1 relay, not to 1 electrified regulation of parallel-connection network when,
Two relays at its both ends are in off-state, can so prevent the single battery 3 in battery modules from short circuit occurs.
Specifically, for this tool described in the present embodiment Fig. 2, there are four the battery packs of battery modules, by four parallel-connection networks
The 1 public same power supply carrys out heating power, and is carried out using relay and single-chip microcontroller to the on/off electricity of each parallel-connection network 1
Control.The on-off of each relay is uniformly controlled by single-chip microcontroller, when in use, two of the positive and negative both ends of one of parallel-connection network 1
When relay (such as Q1 and Q1a) is in closure on-state, remaining relay (Q2-QN, Q2a-QNa) is in disconnection shape
State is so that short circuit occurs for the single battery 3 in order to prevent in battery modules.Preferably be able to achieve in the short time (such as 1S in or
In person 10S) replace, guarantee that each parallel branch closure is primary, and so on carries out alternately heating, finally realize battery
Low-temperature heat function.
It is fitted together between multiple parallel-connection networks using parallel way, by being made of photoetching copper-clad plate between parallel-connection network 3
Transition plates connection, connection is reliable and beautiful.
Above-described embodiment is only the technical concepts and features for illustrating the application, and its object is to allow people that can understand this Shen
Content please is simultaneously implemented accordingly, and the protection scope of the application can not be limited with this.It is all according to the application main technical schemes
The equivalent transformation or modification that Spirit Essence is done should all be covered within the scope of protection of this application.
Claims (9)
1. a kind of parallel-connection network, for being assemblied in battery modules to be connected in parallel multiple battery cells, which is characterized in that described
Parallel-connection network (1) is heating up conductive material after being powered, the parallel-connection network include at least one anode connection terminal sub (101) and
At least one cathode connection terminal (102).
2. parallel-connection network according to claim 1, which is characterized in that it is in that matrix is distributed that the parallel-connection network (1), which includes several,
Welded disc (103) and several and associated (104) being connected between these welded discs (103).
3. parallel-connection network according to claim 2, which is characterized in that welded disc described in the outermost two of them in position
(103) lead is connected on respectively, one of them described lead forms anode connection terminal (101),
Another described lead forms the cathode connection terminal (102).
4. parallel-connection network according to claim 3, which is characterized in that the outer wheel hub of the parallel-connection network (1) be in rectangle, it is described just
Pole connection terminal (101) and the cathode connection terminal (102) are arranged in the diagonal position of the parallel-connection network (1).
5. parallel-connection network according to claim 1, which is characterized in that the parallel-connection network (1) is metal material.
6. a kind of battery modules, including：
If the battery clamp (2) with dry cell plug-in opening (201),
Several batteries series connection piece being respectively embedded into each battery plug-in opening (201),
It is inserted respectively into each battery plug-in opening (201) and connects what piece connected one to one with each battery
Several single batteries (3), and
The parallel-connection network (1) that piece of connecting with each battery is welded to connect；
It is characterized in that, structure of the parallel-connection network (1) using the parallel-connection network as described in any in Claims 1-4.
7. battery modules according to claim 6, which is characterized in that the anode connection terminal sub (101) and the cathode
Connection terminal (102) extend out to the side of the battery clamp (2).
8. a kind of battery pack heating system, including at least two battery modules, which is characterized in that the battery modules are used as weighed
Benefit requires the structure of 6 or 7 battery modules, and the parallel-connection network (1) of each battery modules is connected in parallel on same power supply electricity
Lu Zhong.
9. battery pack heating system according to claim 8, which is characterized in that each parallel-connection network (1) it is positive and negative
Branch road in pole is connected a relay respectively, and each relay is connect with same single chip circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820504685.7U CN208157498U (en) | 2018-04-10 | 2018-04-10 | Parallel-connection network, battery modules, battery pack heating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820504685.7U CN208157498U (en) | 2018-04-10 | 2018-04-10 | Parallel-connection network, battery modules, battery pack heating system |
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| CN208157498U true CN208157498U (en) | 2018-11-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666514A (en) * | 2018-04-10 | 2018-10-16 | 苏州安靠电源有限公司 | Parallel-connection network, battery modules, battery pack heating system and battery modules temperature-rising method |
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- 2018-04-10 CN CN201820504685.7U patent/CN208157498U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108666514A (en) * | 2018-04-10 | 2018-10-16 | 苏州安靠电源有限公司 | Parallel-connection network, battery modules, battery pack heating system and battery modules temperature-rising method |
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Granted publication date: 20181127 Termination date: 20210410 |