CN109802197A - A kind of electrokinetic cell system - Google Patents
A kind of electrokinetic cell system Download PDFInfo
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- CN109802197A CN109802197A CN201811524542.3A CN201811524542A CN109802197A CN 109802197 A CN109802197 A CN 109802197A CN 201811524542 A CN201811524542 A CN 201811524542A CN 109802197 A CN109802197 A CN 109802197A
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- battery
- evaporator
- cooling device
- fan
- refrigerant
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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
The present invention provides a kind of electrokinetic cell system, which includes: battery component and cooling device, wherein the battery component includes multiple batteries, and the multiple battery is connected in series；The cooling device includes medium circulation pipeline, fan, bracket and evaporator, the evaporator is arranged in battery by the bracket, and the evaporator and the battery have heat transfer, the medium circulation pipeline connection is between refrigerant source and the evaporator, for carrying out heat exchange between the refrigerant source and the evaporator by refrigerant；The fan is arranged on the evaporator, for enhancing the heat dissipation between the evaporator and the battery component.The heat exchange efficiency inside battery system can be improved in electrokinetic cell system provided by the invention, and can increase the service life cycle of battery.
Description
Technical field
The present invention relates to power battery field more particularly to a kind of electrokinetic cell systems.
Background technique
Under oil shortage and the situation of global warming, electric car has been considered as the mainstream of future transportation vehicle.And
Power battery is one of big core component of electric car three, how to guarantee that the safety of power battery and life problems seem especially
It is important.
In the prior art, the battery system of power vehicle generallys use natural cooling heat pipe during charging and discharging
Reason mode and the cooling way to manage of liquid-cooled radiate to power battery, wherein natural cooling heat management mode passes through certainly
Natural heat dissipation is carried out to power battery under the conditions of so, the cooling way to manage of liquid-cooled inside battery system by laying liquid cooling pipe
The method on road to carry out power battery heat exchange, and then reduces the temperature inside battery pack.
Since the heat management mode of natural cooling and environment temperature are closely bound up in the prior art, in hot environment or electricity
In the case of Chi Bao heavy-current discharge, it will cause that battery pack self-temperature is excessively high, cause the heat exchange efficiency in battery pack low, and contract
The short service life cycle of battery pack.
Summary of the invention
The technical issues of in order to solve in the prior art, the present invention propose a kind of electrokinetic cell system, power can be improved
Internal heat exchange efficiency in battery system, and the service life cycle of battery can be increased.
According to a first aspect of the embodiments of the present invention, a kind of electrokinetic cell system is provided, the system include: battery component and
Cooling device, wherein the battery component includes multiple batteries, and the multiple battery is connected in series；The cooling device
Including medium circulation pipeline, fan, bracket and evaporator, the evaporator is arranged in battery by the bracket, and institute
Stating evaporator and the battery has heat transfer, and the medium circulation pipeline is connected between refrigerant source and the evaporator,
For carrying out heat exchange between the refrigerant source and the evaporator by refrigerant；The fan is arranged in the evaporator
On, for enhancing the heat dissipation between the evaporator and the battery component.
Optionally, the cooling device is located above the battery component.
Optionally, the evaporator is located at the middle part of the battery of multiple series connections.
Optionally, the medium circulation pipeline includes input pipe and efferent duct, and the first end of the input pipe is used for and institute
The outlet in refrigerant source is stated, the first end of the efferent duct is used to be connected to the entrance in the refrigerant source, the input pipe
Second end and the second end of the efferent duct are connected to the evaporator.
Optionally, further include shell, the shell include for be located at the first cover on the outside of the battery component and
For being provide with the second cover of the cooling device, the top of first cover is equipped with for accommodating the logical of the cooling device
Hole, the second cover lid are located on the through-hole.
Optionally, first cover and second cover are detachably connected.
Optionally, the opening for passing through for input pipe and efferent duct is offered on second cover.
Optionally, the battery component further includes multiple connection frames, and battery described in each adjacent two passes through described in one
Connection frame connection.
Optionally, the air-out direction of the fan faces away from the side of the battery.
It optionally, further include fan Fixture, the fan is arranged on the evaporator by the fan Fixture.
Electrokinetic cell system provided in an embodiment of the present invention, comprising: battery component and cooling device, wherein battery component
Including multiple batteries, and multiple batteries are connected in series；Cooling device includes medium circulation pipeline, fan, bracket and evaporation
Device, evaporator are arranged in battery by bracket, and evaporator and battery have heat transfer, and medium circulation pipeline connection exists
Between refrigerant source and evaporator, for carrying out heat exchange between refrigerant source and evaporator by refrigerant；Fan setting is being evaporated
On device, for enhancing the heat dissipation between evaporator and battery component.Due to by the way that a cooling dress is arranged on battery component top
It sets, the heat exchange efficiency inside electrokinetic cell system not only can be improved, increase the service life of battery, and by the way that dress will be cooled down
It sets and is integrated in an electrokinetic cell system with battery component, the space inside electrokinetic cell system can also be saved.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of present invention structural schematic diagram of electrokinetic cell system shown according to an exemplary embodiment.
Fig. 2 is the explosion of cooling device in a kind of present invention electrokinetic cell system shown according to an exemplary embodiment
Figure.
Fig. 3 is that the structure of cooling device in a kind of present invention electrokinetic cell system shown according to an exemplary embodiment is shown
It is intended to.
Fig. 4 is the structural representation of battery pack in a kind of present invention electrokinetic cell system shown according to an exemplary embodiment
Figure.
Fig. 5 is the schematic top plan view of Fig. 4.
Fig. 6 is the structure of waist type connector in a kind of present invention electrokinetic cell system shown according to an exemplary embodiment
Schematic diagram.
Fig. 7 is refrigeration cycle schematic diagram in a kind of present invention electrokinetic cell system shown according to an exemplary embodiment.
Description of symbols:
1: medium circulation pipeline；
2: the second covers；
3: reinforcing beam；
4: explosion-proof vent valve；
5: high pressure air plug interface；
6: waist type connector；
7: communication wiring harness interface；
8: Manual maintenance switch；
9: heating wiring harness interface；
10: cooling device；
11: connection frame；
12: battery management unit；
13: battery component；
14: fan；
15: fan Fixture；
16: evaporator；
17: bracket；
18: input pipe；
19: efferent duct；
20: air duct air intake vent；
21: duct outlet；
22: battery；
23: the first covers.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the preferred embodiment of the present invention
In attached drawing, technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or
Similar label indicates same or similar component or component with the same or similar functions.Described embodiment is this hair
Bright a part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to
It is used to explain the present invention, and is not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
The embodiment of the present invention is described in detail with reference to the accompanying drawing.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should broadly understood, for example, can make to be fixedly connected, be also possible to indirectly connected through an intermediary, can be with
It is the interaction relationship of the connection or two elements inside two elements.For the ordinary skill in the art,
The specific meanings of the above terms in the present invention can be understood according to specific conditions.
A kind of electrokinetic cell system provided in an embodiment of the present invention can be adapted for power vehicle battery system charging or
During electric discharge, in fact it could happen that the excessively high situation of battery pack self-temperature, in the prior art by the natural type of cooling or
Person cools down to battery pack by way of laying liquid cooling pipeline inside battery pack, due to the natural type of cooling speed compared with
Slowly, exchange rate is lower, and then the service life that will shorten battery pack, and by laying liquid cooling pipeline in battery pack, at
This is higher, in addition, pipeline has the risk of leakage, the safety of battery pack is caused to reduce.
In order to avoid problems of the prior art, the embodiment of the present invention provides a kind of electrokinetic cell system, comprising: electricity
Pond component and cooling device, wherein battery component includes multiple batteries, and multiple batteries are connected in series；Cooling device includes
Medium circulation pipeline, fan, bracket and evaporator, evaporator is arranged in battery by bracket, and evaporator and battery
With heat transfer, medium circulation pipeline is connected between refrigerant source and evaporator, for passing through refrigerant in refrigerant source and evaporator
Between carry out heat exchange；Fan is arranged on an evaporator, for enhancing the heat dissipation between evaporator and battery component.Due to passing through
One cooling device is set on battery component top, the heat exchange efficiency inside electrokinetic cell system not only can be improved, increase electricity
The service life in pond, and by the way that cooling device and battery component to be integrated in an electrokinetic cell system, it can also save
Space inside electrokinetic cell system.
Technical solution of the present invention is described in detail with specific embodiment below.
Fig. 1 is a kind of present invention structural schematic diagram of electrokinetic cell system shown according to an exemplary embodiment.Fig. 2 is
The explosive view of cooling device in a kind of present invention electrokinetic cell system shown according to an exemplary embodiment.Fig. 3 is the present invention
The structural schematic diagram of cooling device in a kind of electrokinetic cell system shown according to an exemplary embodiment.Fig. 4 is root of the present invention
The structural schematic diagram of battery pack in a kind of electrokinetic cell system shown according to an exemplary embodiment.The vertical view that Fig. 5 is Fig. 4 is illustrated
Figure.Fig. 6 is the structural representation of waist type connector in a kind of present invention electrokinetic cell system shown according to an exemplary embodiment
Figure.Fig. 7 is refrigeration cycle schematic diagram in a kind of present invention electrokinetic cell system shown according to an exemplary embodiment.
As shown in Fig. 1-Fig. 7, which includes: battery component 13 and cooling device 10, wherein battery component
13 include multiple batteries 22, and battery 22 is connected in series；Cooling device 10 includes medium circulation pipeline 1, fan 14, bracket 17
With evaporator 16, evaporator 16 is arranged in battery 22 by bracket 17, and evaporator 16 and battery 22 have heat transfer,
Medium circulation pipeline 1 is connected between refrigerant source (not shown) and evaporator 16, for passing through refrigerant in refrigerant source and steaming
Heat exchange is carried out between hair device 16；Fan 14 is arranged on an evaporator, for enhancing between evaporator 16 and battery component 13
Heat dissipation.
In the present embodiment, battery component 13 and cooling device 10 can integrate in battery pack, and battery pack is power electric
The unit powered in cell system.
It wherein, include multiple batteries 22 in battery component 13 with reference to Fig. 1, by being connected in series between battery 22, tool
Body, it can be connected by copper bar between battery 22, further, each battery 22 can pass through multiple batteries again
Monomer is connected in parallel, and can be connected in parallel by copper bar, naturally it is also possible to it is connected in parallel by other means, for
How to be connected in parallel between multiple battery cells, the present invention does not do any restriction, in addition, each battery in battery component 13
The battery core of monomer can be lithium ion battery, and lithium ion battery has high-environmental, high-energy, high power density, long-life, work
The advantages that time long grade memory-less effect.
Optionally, battery component 13 further includes multiple connection frames 11, and each adjacent two battery 22 passes through a connection frame
11 connections；Specifically, each battery 22 is attached with connection frame 11 by bolt, connection frame 11 is for fixing battery
22, so that each battery 22 in battery component 13 is capable of fixing connection.
Optionally, cooling device 10 is located at 13 top of battery component, specifically, cooling device 10 and electricity in battery system
The connection frame between each battery 22 in pond component 13 is bolted, cooling device 10 be used for battery component 13 into
Row cooling, to reduce the temperature in battery pack, increases the service life of battery.
In the present embodiment, the evaporator 16 in cooling device 10 is fixed on the top of battery 22 by bracket 17,
That is, cooling device 10 is attached by the connection frame 11 between bracket 17 and battery 22, in addition, the evaporation of cooling device 10
Device 16 is located at the middle part of multiple concatenated batteries 22, due to having hot biography between the evaporator 16 and battery 22 of cooling device 10
It leads, the evaporator 16 of cooling device 10 can be enabled to carry out heat exchange with multiple batteries 22, so that being placed on electricity
The cooling device 10 of the top of pond component 13 realizes the cooling to battery component 13.
Medium circulation pipeline 1 in cooling device 10 is by the way that refrigerant source to be connect with evaporator 16, for being existed by refrigerant
Heat exchange is carried out between refrigerant source and evaporator 16, that is, cooling device 10 by medium circulation pipeline 1 by refrigerant from refrigerant source
It is transmitted to evaporator 16, and then realizes the heat exchange between refrigerant source and evaporator 16.
Optionally, medium circulation pipeline 1 includes input pipe 18 and efferent duct 19, and the first end of input pipe 18 is used for and refrigerant
The outlet in source, the first end of efferent duct 19 with the entrance in refrigerant source for being connected to, the second end and output of input pipe 18
The second end of pipe 19 is connected to evaporator 16；Specifically, refrigerant source will by one end of the input pipe 18 of medium circulation pipeline 1
Refrigerant is transmitted to the evaporator 16 of cooling device 10, while being acted on by the forced convertion of fan 14, realizes evaporator 16 and electricity
Quick heat exchange between pond core 22, and then realize cooling to battery component 13, but will absorb battery 22 heat it is cold
Matchmaker is transmitted to refrigerant source by the efferent duct 19 of medium circulation pipeline 1 from the other end of evaporator 16, to realize to battery pack
The heat dissipation of internal cell components 13.
In addition, in order to enable fan 14 can the stable top in evaporator 16, a fan can also be set and fixed
Frame 15 is realized and evaporator 16 integrated one specifically, fan 14 can be arranged on evaporator 16 by fan Fixture 15
Body.
As shown in Fig. 2, the placement order of cooling device 10 be from top to bottom followed successively by fan 14, fixed frame 15, evaporator 16,
Bracket 17, cooling device 10 are an integral structure；Optionally, the air-out direction of fan 14 is towards battery, and then will pass through
The cold air of evaporator blows to battery component 13, while the air after absorption 13 heat of battery component being discharged, and realizes evaporator
The heat exchange efficiency inside battery pack can be improved in rapid cooling between 16 and battery component 13 in this way.
Cooling device 10 further includes condenser, compressor, liquid storage device and electric expansion valve, the refrigerant circulation of cooling device 10
Pipeline 1 is sequentially connected with compressor, condenser, liquid storage device, electric expansion valve and evaporator 16, and then forms cooling device 10
Internal self-loopa, wherein electric expansion valve is mainly used for adjusting to the liquid supply rate of evaporator 16.
With continued reference to Fig. 3, cooling device 10 further includes air duct air intake vent 20 and duct outlet 21, and being used for will be by battery pack
The air that part 13 heats forms cold air after the sucking of air duct air intake vent 20 after evaporator 16, and passes through duct outlet 21
Discharge blows to battery component 13, so that the cooling to battery component 13 is realized, at this point, by the sky for absorbing 13 heat of battery component
Gas passes through fan 14 again and enters the air intake vent in air duct, while realizing the self-loopa in battery pack.
It is further continued for reference to Fig. 4 and Fig. 5, Fig. 5 being the schematic top plan view of Fig. 4, the battery pack of electrokinetic cell system further includes shell
Body, shell include the first cover 23 for being located at 13 outside of battery component and the second cover for being provide with cooling device 10
2, the top of the first cover 23 is equipped with the through-hole for accommodating cooling device, and the second cover 2 lid is located on through-hole；Wherein, shell
For protecting battery component 13 and cooling device 10 inside battery pack, from the damage or destruction by the external world, in addition, shell packet
The first cover 23 for including the outside of battery component 13, for protecting battery component 13, the second cover 2 lid is located above through-hole, i.e., and the
Two covers 2 are located at the upper surface of the first cover 23, for protecting cooling device 10, the specific height for being higher than the first cover 23,
Do not do any restriction, can according to the actual situation depending on.
Optionally, the first cover 23 and the second cover 2 are to be detachably connected, specifically, can be by the first cover 23 and the
Two covers 2 are dismantled, by dismantling 10 situation of battery component 13 and cooling device that can not only know inside battery pack, side
Just the cooling device 10 inside battery pack is repaired or battery component 13 etc. is checked, also using dismountable structure
Installation and removal can be made more convenient and low in cost.
Optionally, the opening for passing through for input pipe 18 and efferent duct 19 is offered on the second cover 2, is used for refrigerant
The input pipe 18 and efferent duct 19 of circulation line 1 are by the opening across so that refrigerant passes through input pipe 18 and efferent duct
19 realize the flowing inside and outside battery pack.
Specifically, the first cover 23 can also include upper housing and lower case, can be set between upper housing and lower case
There is rubber washer, be used for sealed cell packet, from there is sundries to enter inside battery pack, causes the use of battery pack impaired, in addition,
Lower case is internally provided with supporting beam, is used to support battery component 13, is additionally provided with reinforcing beam 3 in the two sides of lower case, leads to
The reinforcing beam 3 and supporting beam for crossing lower case, for increasing the structural strength and rigidity of battery pack, can to avoid battery pack by
When extraneous rugged environment, the damage to battery component 13 and cooling device 10 is caused.
In addition, the two sides of lower case are additionally provided with waist type connector 6, it can be referred in conjunction with Fig. 4 and Fig. 6, Fig. 6 is in Fig. 4
The enlarged diagram of 6 structure of waist type connector, as shown in fig. 6, being additionally provided with steel bushing 9 and waist-shaped hole, waist on waist type connector 6
Type connector 6 is mainly used for by the steel bushing 9 and waist-shaped hole of waist type connector 6 fixing battery pack onboard, so that battery
Packet can be more stable fixation onboard, while by the lower case of the first cover 23 use waist type connector 6 can have
The reliability of the raising battery pack of effect.
It is noted that waist type connector 6, reinforcing beam 3, supporting beam and lower case can be connected by welding
It connects, naturally it is also possible to carry out in other way, as long as the structural strength of battery pack and rigidity can be made to reach the effects of needs
Fruit.
With continued reference to Fig. 4, high pressure air plug interface 5 is additionally provided on front side of the lower case of the first cover 23, be mainly used for by
High-voltage wiring harness in battery pack is connect from high pressure air plug interface 5 with high voltage components such as external motor controller or charge ports.Lower casing
The front side of body is equipped with Manual maintenance switch 8 can be by tieing up when being mainly used for needing to repair electrokinetic cell system manually
It repairs the high pressure inside 8 pairs of battery packs of switch to power off, the upper housing in the first cover 23 and one close to Manual maintenance switch 8
It is additionally provided with explosion-proof vent valve 4 above side, for the pressure difference between balancing battery packet and external environment, prevents from occurring inside battery pack
Hypertonia or too low situation.
Further, as shown in Figure 1, being symmetrically arranged with four cell tubes above side before and after the lower case of the first cover 23
Unit 12 is managed, battery management unit 12 is mainly used for the parameter inside control management battery pack, can pass through battery management unit
12 learn: the electricity of battery component 13 at current time, the electric current of battery component 13, battery component 13 voltage and battery component
13 temperature etc., at the same time it can also control the electric expansion valve in cooling device 10, for adjusted by electric expansion valve into
Enter the highly pressurised liquid of evaporator 16, highly pressurised liquid is formed for high pressure refrigerant steam condensation, and then indirectly adjusts cooling dress
Set 10 cooling rate.
For example bright, referring to FIG. 7, when the temperature of the battery component 13 of the temperature sensor acquisition in battery pack reaches
At 35 degrees Celsius, battery management unit 12 will be will start the fan in cooling device 10 14 (aerofoil fan), and fan 14 will be from
Air duct air intake vent 20 sucks the air heated by battery component 13 in battery pack, and the hot-air of sucking is passed through evaporator shape
At cold air, while the refrigerant in the evaporator 16 being heated passes through motor compressor, boil down to high pressure gas, and by high pressure gas
Body is transmitted to the condenser of cooling device 10 by medium circulation pipeline 1, makes high pressure refrigerant steam condensation highly pressurised liquid, and will
Highly pressurised liquid is stored in liquid storage device, and highly pressurised liquid sprays into evaporator 16 after the adjusting of electric expansion valve again, and then cooling
Hot-air, the cold air being formed simultaneously are sent to battery component 13 by duct outlet 21, are completed with this to battery component 13
Cooling.The present embodiment is integrated in battery pack by using by cooling device 10 and battery component 13, satisfaction that can be preferential
The heat dissipation of battery component 13 guarantees that battery works within the scope of best temperature, improves the service life of battery.
In addition, Fig. 4 please be refer back to, battery management list is additionally provided on front side of the lower case of the first cover 23 in battery pack
The communication wiring harness interface 7 and heating wiring harness interface 9 of member 12, wherein the communication harness of battery management unit 12 is mainly used for will be electric
The collected data of pond administrative unit 12 are transmitted in the control unit of vehicle, heating harness be mainly used for battery component 13 into
Row heating may can not be to automobile specifically, the temperature of battery component 13 is too low at this time when ambient temperature is lower
It is powered, at this point it is possible to heat temperature raising be carried out to battery component 13 by heating harness, so that battery component 13 is in preferable
Temperature, battery is normally powered.
A kind of electrokinetic cell system provided in an embodiment of the present invention, comprising: battery component and cooling device, wherein battery
Component includes multiple batteries, and multiple batteries are connected in series；Cooling device includes medium circulation pipeline, fan, bracket and steaming
Device is sent out, evaporator is arranged in battery by bracket, and evaporator and battery have heat transfer, medium circulation pipeline connection
Between refrigerant source and evaporator, for carrying out heat exchange between refrigerant source and evaporator by refrigerant；Fan setting is being steamed
It sends out on device, for realizing the quick heat exchange between evaporator and battery.Due to by cold in battery component top setting one
But the heat exchange efficiency inside electrokinetic cell system not only can be improved in device, increases the service life of battery, and passing through will be cold
But device and battery component are integrated in a battery pack, can also save the limited use space of vehicle.
In the description of the present invention, it is to be understood that, term " on ", "lower", "vertical", "horizontal", "top", "bottom",
The orientation or positional relationship of the instructions such as "inner", "outside" are to be based on the orientation or positional relationship shown in the drawings, and are merely for convenience of
The description present invention and simplify description, rather than indicate or imply signified device or element must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In the description of the present invention, " multiple "
It is meant that two or more, accurately specifically provides unless otherwise.
The description and claims of this application and the term " first " in above-mentioned attached drawing, " second " are for distinguishing class
As object, without being used to describe a particular order or precedence order.It should be understood that the data used in this way are in appropriate situation
Under can be interchanged, so as to embodiments herein described herein for example can in addition to those of illustrate or describe herein with
Outer sequence is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover non-exclusive packet
Contain, for example, what the process, method, system, product or equipment for containing a series of steps or units were not necessarily limited to be clearly listed
Those step or units, but may include be not clearly listed or it is intrinsic for these process, methods, product or equipment
Other step or units.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
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Address after: Unit 1201, unit 3, 12 / F, building 2, yard 9, FengHao East Road, Haidian District, Beijing 100094 Applicant after: Beijing Haibo Sichuang Technology Co.,Ltd. Address before: 100094 Beijing city Haidian District fengxiu Road No. 3 Building No. 8 hospital Applicant before: BEIJING HYPERSTRONG TECHNOLOGY Co.,Ltd. |
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Application publication date: 20190524 |