CN208460818U - Multi-box battery heating circuit of pure electric vehicle - Google Patents
Multi-box battery heating circuit of pure electric vehicle Download PDFInfo
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- CN208460818U CN208460818U CN201820649548.2U CN201820649548U CN208460818U CN 208460818 U CN208460818 U CN 208460818U CN 201820649548 U CN201820649548 U CN 201820649548U CN 208460818 U CN208460818 U CN 208460818U
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- switch
- battery
- coil
- heating
- case
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses a pure electric vehicles multi-box battery heating circuit, including the battery box of several series connection, switching relay, heating relay and the discharge relay of series connection are equipped with from the positive terminal to the negative pole end in the battery box, and switching relay includes change over switch and first coil, and heating relay includes heating switch and second coil, and the discharge relay includes discharge switch and third coil; two ends of the first coil, the second coil and the third coil are connected to a low-voltage power supply; a first movable contact of the change-over switch is connected with a fixed contact of the heating switch, a movable contact of the heating switch is connected with a fixed contact of the discharging switch, and a second movable contact of the change-over switch is connected with a fixed contact of the heating switch; the fixed contact of the change-over switch is used as the positive terminal of the battery box, and the movable contact of the discharge switch is used as the negative terminal of the battery box. The number of high-voltage plug connectors on the battery box is reduced, wiring harnesses between the battery boxes are simplified, and the cost of the whole vehicle battery system is reduced.
Description
Technical field
The utility model belongs to technical field of new energy, and in particular to a kind of more case battery heating electricity of pure electric automobile
Road.
Background technique
Heater wire between the general battery case of pure electric automobile and battery case of more battery cases with heating function at present
Road needs to be together in series by individual special circuit.This connection type needs have individual battery to add on battery case
Hot interface has dedicated heating high-voltage wiring harness between battery case and battery case.This connection type will lead to high on battery case
Pressure plug connector quantity increases and the high-voltage wiring harness between battery case and battery case increases.
Summary of the invention:
In order to overcome the defect of above-mentioned background technique, the utility model provides a kind of more case battery heating electricity of pure electric automobile
Road simplifies high-voltage wiring harness, reduces battery system cost.
In order to solve the above-mentioned technical problem the used technical solution of the utility model are as follows:
A kind of more case battery heater circuits of pure electric automobile, including several concatenated battery cases, battery case are interior from positive terminal
To negative pole end be equipped with concatenated switching relay, heating relay and electric discharge relay, switching relay include switching switch with
First coil, heating relay include heater switch and the second coil, and electric discharge relay includes discharge switch and tertiary coil；The
The both ends of one coil, the second coil and tertiary coil are all connected to low-tension supply；First armature contact connection of switching switch adds
The fixed contact of thermal switch, the fixed contact of the armature contact connection discharge switch of heater switch, switches the second activity of switch
The fixed contact of contact connection heater switch；Switch positive terminal of the fixed contact of switch as battery case, the work of discharge switch
Negative pole end of the movable contact as battery case.
Preferably, the positive terminal of the negative pole end connection i+1 battery case of i-th battery case, wherein i=1,2 ... n, n
For the number of battery case；The output of the negative pole end of the positive terminals such as the 1st battery case and n-th of battery case connection high-tension distribution box
End；
Preferably, being additionally provided with heating element between the armature contact of heater switch and the fixed contact of discharge switch.
Preferably, heating element is heating film.
Preferably, being additionally provided with safety element between the armature contact and heating element of heater switch.
Preferably, safety element is fuse.
Preferably, battery case is equipped with low-voltage interface, the both ends of first coil, the second coil and tertiary coil pass through low
It crimps mouth and connects low-tension supply.
The utility model has the beneficial effects that: the structure by the utility model has outside the battery case of heating function
No longer interface is heated with dedicated battery.The heating interface of battery case and the charge and discharge electrical interface of battery case can share, and pass through
The switching switch for switching relay moves contacts the Working mould switched between the second armature contact to select battery case first
Formula.Using the charge and discharge electrical interface on Battery case, the battery management system demand different according to battery, inside battery case
Relay selects corresponding circuit loop, switches over battery case between heating and charge and discharge two states.Pass through
It is such to switch and select different circuit loops, heating circuit and charging and discharging circuit between more case batteries can be made to realize
It shares, reaches external interface and harness simplifies, the purpose that battery system cost reduces.The utility model passes through using in battery case
Circuit design can make charging and discharging circuit between battery case and battery case and battery heating circuit common high voltage plug connector and
High-voltage wiring harness.Reduce high pressure plug connector quantity on battery case, the harness between battery case simplifies, vehicle battery system cost drop
It is low.
Detailed description of the invention
Fig. 1 is the inner connecting structure schematic diagram of the utility model embodiment,
Fig. 2 is the external structure schematic diagram of the utility model embodiment.
In figure: 1, battery case, 2, switching relay, 2.1, switching switch, 2.2, first coil, 3, heating relay,
3.1, heater switch, the 3.2, second coil, 4, electric discharge relay, 4.1, discharge switch, 4.2, tertiary coil, 5, safety element,
6, heating element, 7, low-voltage interface, 8, positive terminal, 9, negative pole end.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and examples.
A kind of more case battery heater circuits of pure electric automobile, including several concatenated battery cases 1, battery case 1 are interior from anode
End 8 is equipped with concatenated switching relay 2, heating relay 3 and electric discharge relay 4 to negative pole end 9, and switching relay 2 includes cutting
Switch 2.1 and first coil 2.2 are changed, heating relay 3 includes heater switch 3.1 and the second coil 3.2, and electric discharge relay 4 wraps
Include discharge switch 4.1 and tertiary coil 4.2；The both ends of first coil 2.2, the second coil 3.2 and tertiary coil 4.2 are all connected to
Low-tension supply；Switch the fixed contact of the first armature contact connection heater switch 3.1 of switch 2.1, the activity of heater switch 3.1
Contact connects the fixed contact of discharge switch 4.1, switches the fixed touching of the second armature contact connection heater switch 3.1 of switch
Point；Switch positive terminal 8 of the fixed contact of switch 2.1 as battery case 1, the armature contact of discharge switch 4.1 is as battery case 1
Negative pole end 9.
The negative pole end 9 of i-th of battery case 1 connects the positive terminal 8 of i+1 battery case 1, and wherein i=1,2 ... n, n are
The number of battery case 1；The negative pole end 9 of the positive terminals 8 such as the 1st battery case 1 and n-th of battery case 1 connects the defeated of high-tension distribution box
Outlet；
It is additionally provided with heating element 6 between the armature contact of heater switch 3.1 and the fixed contact of discharge switch 4.1, is added
Thermal element 6 is heating film.
Safety element 5 is additionally provided between the armature contact and heating element 6 of heater switch 3.1, safety element 5 is insurance
Silk.
Battery case 1 is equipped with low-voltage interface 7, and the both ends of first coil 2.2, the second coil 3.2 and tertiary coil 4.2 are logical
It crosses low-voltage interface 7 and connects low-tension supply.
It is had by the structure of the utility model and is no longer connect with the heating of dedicated battery outside the battery case 1 of heating function
Mouthful.The heating interface and the charge and discharge electrical interface of battery case 1 of battery case 1 can share, and the switching by switching relay 2 switchs
2.1 operating modes switched between the first armature contact and the second armature contact to select battery case 1.Utilize 1 body of battery case
On charge and discharge electrical interface, the battery management system demand different according to battery select to correspond to by relay inside battery case 1
Circuit loop, switch over battery case 1 between heating and charge and discharge two states.Switching and choosing in this way
Different circuit loops is selected, heating circuit and charging and discharging circuit between more case batteries can be made to realize and shared, reach external
Interface and harness simplify, the purpose that battery system cost reduces.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (7)
1. a kind of more case battery heater circuits of pure electric automobile, it is characterised in that: described including several concatenated battery cases (1)
Concatenated switching relay (2), heating relay (3) are equipped with from positive terminal (8) to negative pole end (9) in battery case (1) and are discharged
Relay (4), the switching relay (2) include switching switch (2.1) and first coil (2.2), the heating relay (3)
Including heater switch (3.1) and the second coil (3.2), the electric discharge relay (4) includes discharge switch (4.1) and tertiary coil
(4.2)；The both ends of the first coil (2.2), second coil (3.2) and the tertiary coil (4.2) are all connected to low
Voltage source；The fixed contact of first armature contact connection heater switch (3.1) of the switching switch (2.1), the heating are opened
Close the fixed contact of armature contact connection discharge switch (4.1) of (3.1), the second armature contact of the switching switch (2.1)
Connect the fixed contact of the heater switch (3.1)；The fixed contact of the switching switch (2.1) is as the battery case (1)
Positive terminal (8), negative pole end (9) of the armature contact of the discharge switch (4.1) as the battery case (1).
2. the more case battery heater circuits of a kind of pure electric automobile according to claim 1, it is characterised in that: i-th of battery
The positive terminal (8) of negative pole end (9) connection i+1 battery case (1) of case (1), wherein i=1,2 ... n, n are battery case (1)
Number；The positive terminal (8) of 1st battery case (1) and the negative pole end (9) of n-th of battery case (1) connect high-tension distribution box.
3. the more case battery heater circuits of a kind of pure electric automobile according to claim 1, it is characterised in that: in the heating
It switchs and is additionally provided with heating element (6) between the armature contact of (3.1) and the fixed contact of the discharge switch (4.1).
4. the more case battery heater circuits of a kind of pure electric automobile according to claim 3, it is characterised in that: the heating unit
Part (6) is heating film.
5. the more case battery heater circuits of a kind of pure electric automobile according to claim 3, it is characterised in that: in the heating
It switchs and is additionally provided with safety element (5) between the armature contact and the heating element (6) of (3.1).
6. the more case battery heater circuits of a kind of pure electric automobile according to claim 5, it is characterised in that: the insurance member
Part (5) is fuse.
7. the more case battery heater circuits of a kind of pure electric automobile according to claim 1, it is characterised in that: the battery case
(1) low-voltage interface (7) are equipped with, the first coil (2.2), second coil (3.2) and the tertiary coil (4.2)
Both ends connect the low-tension supply by the low-voltage interface (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820649548.2U CN208460818U (en) | 2018-05-03 | 2018-05-03 | Multi-box battery heating circuit of pure electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820649548.2U CN208460818U (en) | 2018-05-03 | 2018-05-03 | Multi-box battery heating circuit of pure electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208460818U true CN208460818U (en) | 2019-02-01 |
Family
ID=65151849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820649548.2U Active CN208460818U (en) | 2018-05-03 | 2018-05-03 | Multi-box battery heating circuit of pure electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208460818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113859032A (en) * | 2021-08-23 | 2021-12-31 | 上海融和智电新能源有限公司 | Novel replaceable battery system |
-
2018
- 2018-05-03 CN CN201820649548.2U patent/CN208460818U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113859032A (en) * | 2021-08-23 | 2021-12-31 | 上海融和智电新能源有限公司 | Novel replaceable battery system |
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