CN205646943U - Diverging device and high voltage charging circuit - Google Patents
Diverging device and high voltage charging circuit Download PDFInfo
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- CN205646943U CN205646943U CN201620505640.2U CN201620505640U CN205646943U CN 205646943 U CN205646943 U CN 205646943U CN 201620505640 U CN201620505640 U CN 201620505640U CN 205646943 U CN205646943 U CN 205646943U
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- major loop
- relay
- branch road
- flow arrangement
- part flow
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Abstract
The embodiment of the utility model provides a diverging device and high voltage charging circuit. Diverging device includes major loop relay, branch road and control system, the branch road is including disconnected component of the branch of establishing ties and protecting component, the branch road with the major loop relay is parallelly connected, control system respectively with the major loop relay with divide disconnected component connection, be used for controlling the major loop relay with the closed of disconnected component and disconnection divide. The utility model discloses diverging device, can be effectual the area of major loop relay in improvement high voltage charging return circuit carry the security in the ability of cutting off, guarantee high voltage charging return circuit.
Description
Technical field
This utility model relates to electronic technology field, particularly relates to a kind of part flow arrangement and high-voltage charging electricity
Road.
Background technology
As a kind of comfortable vehicles easily, the usage amount of automobile is continuously increased.Meanwhile,
Environmental pollution and energy crisis that the orthodox car of the resources such as use oil causes also are being aggravated.
In order to reduce environmental pollution, solve energy crisis, it is achieved sustainable development and Green Development, people
Constantly explore and attempt new replacement scheme.In this context, the new-energy automobile such as electric automobile meets the tendency
And give birth to.
New-energy automobile, as the important composition key element of the New Times of Green Sustainable, was got in recent years
Get over the attention by countries in the world and accreditation.Along with developing rapidly of ev industry, people couple
The demand of electric vehicle rapid charging is also more and more higher, and charging current, charging voltage are also increasingly
High.Along with charging current, the raising of charging current, the requirement for matched device the most more comes
The harshest.Particularly relay band in abnormal cases is carried the number of times cut off and ability proposes new
Requirement.
At present, it is limited in one's ability that relay band on the market carries cut-out, and relay band carries and cuts off easily simultaneously
The potential safety hazard such as arcing and relay adhesion occurs.This situation causes to popularizing of electric automobile
The biggest obstacle.
Utility model content
The purpose of this utility model is to provide a kind of part flow arrangement and high voltage charge circuit, protects electronic
The safety in automobile high-voltage charging loop, the band improving relay carries the ability cut off.
For achieving the above object, the utility model proposes a kind of part flow arrangement, major loop relay,
Branch road and control system, described branch road include series connection disjunction element and protection element, described branch road with
Described major loop relay is in parallel, described control system respectively with described major loop relay and described point
Disconnected element connects, in order to control described major loop relay and the closed and disconnected of described disjunction element.
Further, above-mentioned part flow arrangement also can have the characteristics that, described disjunction element is relay,
Described protection element is electric fuse or semiconductor switch.
Further, above-mentioned part flow arrangement also can have the characteristics that, described disjunction element is controlled guarantor
Danger silk, described protection element is relay, electric fuse or semiconductor switch.
Further, above-mentioned part flow arrangement also can have the characteristics that, described disjunction element is quasiconductor
Switch, described protection element is relay, electric fuse or semiconductor switch.
Further, above-mentioned part flow arrangement also can have the characteristics that, described semiconductor element is electric power
Transistor.
Further, above-mentioned part flow arrangement also can have the characteristics that, described control system and described guarantor
Protection element connects, in order to control the closed and disconnected of described protection element.
Further, above-mentioned part flow arrangement also can have the characteristics that, described control system is cell tube
Reason system.
The part flow arrangement of this utility model embodiment, it is possible to the effective master improving high-voltage charging loop returns
The band of road relay carries cut-out ability, ensures the safety in high-voltage charging loop.
For achieving the above object, this utility model also proposed a kind of high voltage charge circuit, including high pressure
Part flow arrangement described in charging major loop and aforementioned any one, the major loop relay in described part flow arrangement
Device is connected in described high-voltage charging major loop.
The high voltage charge circuit of this utility model embodiment, reliability is high, and safety is good.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, below will be in embodiment
The required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only
Embodiments more of the present utility model, for those of ordinary skill in the art, are not paying creation
On the premise of property is laborious, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the population structure schematic diagram of part flow arrangement in this utility model embodiment；
Fig. 2 is one of structural representation of branch road in Fig. 1；
Fig. 3 is in Fig. 1 the two of the structural representation of branch road；
Fig. 4 is in Fig. 1 the three of the structural representation of branch road；
Fig. 5 is during in part flow arrangement shown in Fig. 1, battery management circuit controls major loop relay and branch road
The sequential chart of disjunction element；
Fig. 6 is part flow arrangement workflow diagram when using branch road shown in Fig. 2；
Fig. 7 is part flow arrangement workflow diagram when using branch road shown in Fig. 3；
Fig. 8 is part flow arrangement workflow diagram when using branch road shown in Fig. 4；
Fig. 9 is the structural representation of controlled electric fuse；
Figure 10 is the population structure schematic diagram of this utility model embodiment mesohigh charging circuit.
Figure 11 is the flow chart of the method for work of part flow arrangement in this utility model embodiment.
Detailed description of the invention
Being described principle of the present utility model and feature below in conjunction with accompanying drawing, illustrated embodiment is only used
In explaining this utility model, it is not intended to limit scope of the present utility model.Skill common for this area
From the point of view of art personnel, on the premise of not paying creative work, obtained according to this utility model spirit
All embodiments, broadly fall into protection domain of the present utility model.
Fig. 1 is the population structure schematic diagram of part flow arrangement in this utility model embodiment.Shown in Fig. 1
Part flow arrangement can apply in the high voltage charge circuit of Electric power car.
As it is shown in figure 1, in the present embodiment, part flow arrangement includes major loop relay, branch road and control
System, branch road includes disjunction element and the protection element of series connection, and branch road is in parallel with major loop relay,
Control system is connected with major loop relay and disjunction element respectively, in order to control major loop relay and
The closed and disconnected of disjunction element.
Wherein, control system can be BMS (Battery Management System, cell tube
Reason system).
Seeing Fig. 1, in this utility model embodiment, control system can also be connected with protection element,
In order to control to protect the closed and disconnected of element.
First outfan of control system is connected with the control end of disjunction element, is used for controlling disjunction element
Disconnection Guan Bi sequential.Second outfan of control system is connected with the control end of protection element, is used for
Control the disconnection of protection element.
The element that disjunction element can take various forms, makes loop disconnect as long as disjunction element disconnects
?.Protection element can be controlled electric fuse etc., and protection element breaks down at disjunction element can not
Make major loop relay disconnect when disconnecting major loop relay, play a protective role.
Control system is with the connection of major loop relay, and the 3rd outfan of control system is (in Fig. 1
Not shown) can be connected with the control end of major loop relay, for controlling the disconnected of major loop relay
Sequential is closed in opening and closing.The first input end (not shown in figure 1) of control system and major loop relay
Test side is connected, for detecting the state (referring to be opened or closed) of major loop relay.Control system
The electricity in high-voltage charging loop at the second input (not shown in figure 1) and major loop relay place
Stream test side is connected, for detecting the electric current in this high-voltage charging loop.
May be configured to storage in control system and perform the processor of software program, this processor can
Corresponding to drive control program to realize branch road and the driving of major loop relay and control by performing
System.
Branch road plays shunting action when major loop relay band carries and cuts off, and its principle is: at big electric current
In the case of band carries, when needs cut off major loop relay, branch road is first made to be in channel status, so
Major part electric current will pass through branch road, so that the electric current of major loop is smaller, cuts off and leads back
Road relay, makes major loop relay cut off in the environment of small area analysis.When branch road breaks down
Waiting, the protection element in branch road can carry out cutoff high charge circuit by action directly or indirectly.
When high-voltage charging loop normally uses, major loop relay closes, and branch road is off.
Wherein, the disjunction element in branch road and protection element can have multiple implementation, below citing
Explanation.
The first situation: disjunction element is relay, protection element can be electric fuse or quasiconductor is opened
Close.
Fig. 2 is one of structural representation of branch road in Fig. 1.As in figure 2 it is shown, in the present embodiment,
Road includes relay and the electric fuse of series connection.Wherein, relay is disjunction element, and electric fuse is protection
Element.
In the case of using the relay connected shown in Fig. 2 and electric fuse as branch road, part flow arrangement
Operation principle be:
In the case of big current strap carries, when needs cut off major loop relay, control system is by driving
The dynamic relay Guan Bi controlled in Fig. 2, so that branch road is in channel status, so major part electric current is just
Can be by branch road, so that the electric current of major loop is smaller.Then, the electric current at major loop is smaller
In the case of, control system controls the disconnection of major loop relay by driving, and thus makes major loop continue
Electrical equipment cuts off in the environment of small area analysis.Shown in Fig. 2, branch road breaks down when, in branch road
Protection element (for electric fuse in Fig. 2) can carry out cutoff high by action directly or indirectly and charge
Loop.When high-voltage charging loop normally uses, major loop relay closes, and branch road is off.
The second situation: disjunction element is semiconductor switch, protection element can be relay, insurance
Silk or semiconductor switch.
Fig. 3 is in Fig. 1 the two of the structural representation of branch road.As it is shown on figure 3, in the present embodiment,
Road includes the first semiconductor element and second semiconductor element of series connection.Wherein, the first semiconductor element
For disjunction element, the second semiconductor element is protection element.
Using the first semiconductor element connected shown in Fig. 3 and the second semiconductor element as branch road
In the case of, the operation principle of part flow arrangement is:
In the case of big current strap carries, when needs cut off major loop relay, control system is by driving
Dynamic the first semiconductor element Guan Bi controlled in Fig. 3, so that branch road is in channel status, so big portion
Divide electric current will pass through branch road, so that the electric current of major loop is smaller.Then, at the electricity of major loop
Flow smaller in the case of, control system by drive control major loop relay disconnect, thus make
Major loop relay cuts off in the environment of small area analysis.Shown in Fig. 3, branch road breaks down when,
Protection element (being the second semiconductor element in Fig. 3) in branch road can dynamic by directly or indirectly
Make to carry out cutoff high charge circuit.When high-voltage charging loop normally uses, major loop relay closes,
Branch road is off.
Fig. 4 is in Fig. 1 the three of the structural representation of branch road.As shown in Figure 4, in the present embodiment,
Road includes the semiconductor element of series connection and controlled electric fuse.Wherein, semiconductor element is disjunction element,
Controlled electric fuse is protection element.Wherein, semiconductor element can be GTR (Giant Transistor,
Power transistor) pipe.
Wherein, the structure of controlled electric fuse is as shown in Figure 9.As it is shown in figure 9, controlled electric fuse is permissible
By electric fuse in parallel and switch and control the control parts of this switch and form.
In the case of using the semiconductor element connected shown in Fig. 4 and controlled electric fuse as branch road,
The operation principle of part flow arrangement is:
In the case of big current strap carries, when needs cut off major loop relay, control system is by driving
The dynamic semiconductor element Guan Bi controlled in Fig. 4, so that branch road is in channel status, so major part electricity
Stream will pass through branch road, so that the electric current of major loop is smaller.Then, at the current ratio of major loop
In the case of less, control system controls the disconnection of major loop relay by driving, and thus makes to lead back
Road relay cuts off in the environment of small area analysis.Shown in Fig. 3, branch road breaks down when, branch road
In protection element (in Fig. 4 for controlled electric fuse) can be cut off by action directly or indirectly
High-voltage charging loop.When high-voltage charging loop normally uses, major loop relay closes, and branch road is in
Off-state.
By the branch road shown in Fig. 4, using semiconductor element when, can directly pass through
Cut off the semiconductor element in branch road and carry out direct disconnected branches.Need not be cut off by controlled electric fuse and prop up
Road.Then by whether detection branch there being electric current judge controlled electric fuse whether adhesion or fault,
Disconnect controlled electric fuse again.
The third situation: disjunction element is controlled electric fuse, protection element can be relay, insurance
Silk or semiconductor switch.
Certainly, the example that the composition situation of branch road is only enumerated, it is not used to branch road is defined.
In other embodiments of this utility model, branch road can also be combined by other components and parts and realize.
Owing to relay band in abnormal cases load is cut off limited in one's ability, can in order to realize protective loop
Normally playing a role, the part flow arrangement of protection major loop relay is carried out sequencing contro is that have very much must
Want.Below control system in part flow arrangement shown in Fig. 1 is controlled in major loop relay and branch road
The sequential of disjunction element illustrates.
Fig. 5 be during in part flow arrangement shown in Fig. 1, control system controls major loop relay and branch road point
The sequential chart of disconnected element.Disjunction element in Fig. 5, in the branch road that in part flow arrangement, disjunction element is.
As it is shown in figure 5, the moment that the t1 moment is major loop relay Guan Bi；The t2 moment is in branch road
Disjunction element closing moment；T3 is that major loop relay disconnects the moment；In t4 branch road, disjunction element is disconnected
Open the moment.
In this utility model embodiment, can be come real by the software arrangements of processor in control system
Now disjunction element in major loop relay and part flow arrangement is carried out sequencing contro.As it is shown in figure 5, t1
Moment major loop relay closes, and t2 timing control system receives the life disconnecting major loop relay
Order, control system drives the disjunction element in branch road to close by driving, and t3 timing control system leads to
Crossing major loop relay drives major loop relay to disconnect, when control system detects major loop
After relay disconnects, t4 timing control system controls disjunction element in part flow arrangement and disconnects.Can by Fig. 5
Seeing, disjunction element closed before major loop relay disconnects, disconnected after major loop relay disconnects
Open.
Fig. 6 is part flow arrangement workflow diagram when using branch road shown in Fig. 2.As shown in Figure 6, exist
When part flow arrangement uses branch road shown in Fig. 2, workflow comprises the steps:
Step S601, in the case of band carries, control system receives the instruction disconnecting major loop relay；
Step S602, control system closes by driving the relay in controlling brancher；
Step S603, control system controls the disconnection of major loop relay by driving；
Step S604, the electric fuse in branch road, because of the excessive fusing of electric current, cuts off branch road；
Step S605, control system, by driving the relay in controlling brancher to disconnect, terminates flow process.
Fig. 7 is part flow arrangement workflow diagram when using branch road shown in Fig. 3.As shown in Figure 6, exist
When part flow arrangement uses branch road shown in Fig. 3, workflow comprises the steps:
Step S701, in the case of band carries, control system receives the instruction disconnecting major loop relay；
Step S702, control system is by driving the first semiconductor element in controlling brancher (as propping up
Disjunction element in road) Guan Bi；
Step S703, control system controls the disconnection of major loop relay by driving；
Step S704, control system, by driving the first semiconductor element in controlling brancher to disconnect, is tied
Line journey.
Fig. 8 is part flow arrangement workflow diagram when using branch road shown in Fig. 4.As shown in Figure 6, exist
When part flow arrangement uses branch road shown in Fig. 4, workflow comprises the steps:
Step S801, in the case of band carries, control system receives the instruction disconnecting major loop relay；
Step S802, control system is by driving the semiconductor element in controlling brancher (as in branch road
Disjunction element) Guan Bi；
Step S803, control system controls the disconnection of major loop relay by driving；
Step S804, control system disconnects by driving the semiconductor element in controlling brancher；
Step S805, it is judged that whether control system detects that outfan has electric current, if control system inspection
Measure outfan and have electric current, perform step S806, otherwise terminate flow process；
Step S806, the controlled electric fuse in control system controlling brancher disconnects, and terminates flow process.
The part flow arrangement of this utility model embodiment, by the shunting action of branch road, it is possible to effectively solve
Certainly relay band carries the ability cut off；By controlling major loop relay and part flow arrangement disjunction element
Guan Bi and disconnection sequential ensure that major loop relay can disconnect in the environment of small area analysis；By
Branch road adds protection element, can cutoff high charge circuit safely and reliably, it is ensured that circuit safety；
By the software arrangements to control system, can judge whether to load in major loop relay by sampling
The scope of device normal cutoff, and then choose whether to start part flow arrangement；Can be by control system
Various software configuration realize defencive function.
Visible, the part flow arrangement of this utility model embodiment, it is possible to effective raising high-voltage charging loop
Major loop relay band carry cut-out ability, ensure high-voltage charging loop safety.
Figure 10 is the population structure schematic diagram of this utility model embodiment mesohigh charging circuit.Such as figure
Shown in 10, this high voltage charge circuit includes high-voltage charging major loop and part flow arrangement, wherein, shunting dress
The major loop relay put is connected in high-voltage charging major loop.Wherein, part flow arrangement can be this
Any one part flow arrangement in utility model previous embodiment.
Owing to the high voltage charge circuit of this utility model embodiment includes aforesaid part flow arrangement, it is possible to
Needing reliably to disconnect during cutoff high charge circuit high-voltage charging loop, therefore reliability is high, safety
Property is good.
This utility model embodiment also proposed a kind of method of work based on above-mentioned part flow arrangement.Figure
11 is the flow chart of the method for work of part flow arrangement in this utility model embodiment.As shown in figure 11,
The method of work of part flow arrangement may include steps of:
Step S1101, control system sends Guan Bi refer to disjunction element and/or the protection element of branch road
Order, controlling brancher is in channel status；
Step S1102, in the case of branch road is in channel status, control system is to major loop relay
Device sends open command, controls major loop relay and disconnects；
Step S1103, after major loop relay disconnects, disconnects disjunction element and/or protection element.
Disconnect disjunction element and/or protection element be meant that: when in step S1101 Guan Bi be disjunction
During element, step S1103 disconnects disjunction element；When in step S1101 Guan Bi be protection element time,
Step S1103 disconnects protection element；It is disjunction element and protection element when what step S1101 closed
Time, step S1103 disconnects disjunction element and protection element.
In the case of disjunction element is relay, protects element to be electric fuse or semiconductor switch, disconnected
Open disjunction element and/or protection element can include；Make relay be kept closed, make electric fuse melt
Change or control system controls semiconductor switch and disconnects.
The method of work of the part flow arrangement of this utility model embodiment, it is possible to charge in needs cutoff high
Reliably disconnect the major loop relay in high-voltage charging loop during loop, thus improve high-voltage charging and return
The band of the major loop relay on road carries cut-out ability, has ensured the safety in high-voltage charging loop.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made,
Within should be included in protection domain of the present utility model.
Claims (8)
1. a part flow arrangement, it is characterised in that include major loop relay, branch road and control system
System, described branch road includes disjunction element and the protection element of series connection, and described branch road continues with described major loop
Electrical equipment is in parallel, and described control system is connected with described major loop relay and described disjunction element respectively,
In order to control described major loop relay and the closed and disconnected of described disjunction element.
Part flow arrangement the most according to claim 1, it is characterised in that described disjunction element is
Relay, described protection element is electric fuse or semiconductor switch.
Part flow arrangement the most according to claim 1, it is characterised in that described disjunction element is
Controlled electric fuse, described protection element is relay, electric fuse or semiconductor switch.
Part flow arrangement the most according to claim 1, it is characterised in that described disjunction element is
Semiconductor switch, described protection element is relay, electric fuse or semiconductor switch.
Part flow arrangement the most according to claim 4, it is characterised in that described semiconductor switch
For power transistor.
Part flow arrangement the most according to claim 1, it is characterised in that described control system with
Described protection element connects, in order to control the closed and disconnected of described protection element.
Part flow arrangement the most according to claim 1, it is characterised in that described control system is
Battery management system.
8. a high voltage charge circuit, it is characterised in that include that high-voltage charging major loop and right are wanted
Seeking the part flow arrangement described in 1 to 7 any one, the major loop relay in described part flow arrangement is connected on
In described high-voltage charging major loop.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620505640.2U CN205646943U (en) | 2016-05-27 | 2016-05-27 | Diverging device and high voltage charging circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620505640.2U CN205646943U (en) | 2016-05-27 | 2016-05-27 | Diverging device and high voltage charging circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026229A (en) * | 2016-05-27 | 2016-10-12 | 宁德时代新能源科技股份有限公司 | Shunting device and working method thereof |
-
2016
- 2016-05-27 CN CN201620505640.2U patent/CN205646943U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106026229A (en) * | 2016-05-27 | 2016-10-12 | 宁德时代新能源科技股份有限公司 | Shunting device and working method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220114 Address after: 352100 science and technology building, No. 2, Xingang Road, Zhangwan Town, Jiaocheng District, Ningde City, Fujian Province Patentee after: Ningde Shidai Runzhi Software Technology Co.,Ltd. Address before: 352100 Xingang Road, Zhangwan Town, Jiaocheng District, Ningde, Fujian 1 Patentee before: Contemporary Amperex Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |