CN209375122U - Prevent the protection circuit of car electrical appliance over-discharge - Google Patents
Prevent the protection circuit of car electrical appliance over-discharge Download PDFInfo
- Publication number
- CN209375122U CN209375122U CN201920218339.7U CN201920218339U CN209375122U CN 209375122 U CN209375122 U CN 209375122U CN 201920218339 U CN201920218339 U CN 201920218339U CN 209375122 U CN209375122 U CN 209375122U
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- battery
- key
- power supply
- relay
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- 230000005611 electricity Effects 0.000 claims description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Abstract
The utility model discloses a kind of protection circuits for preventing car electrical appliance over-discharge; the car is equipped with vehicle key power supply, battery often uses power supply, which mainly includes battery, low tension bat-handle switch, key electrical relay, time-delay relay, key switch, generator, minus earth；One end of the low tension bat-handle switch is often connect with power supply with battery, the other end is in parallel with the anode of battery and key electrical relay respectively；The normally opened contact of the key electrical relay is in parallel with vehicle key power supply, the end B+ of generator respectively, the normally opened contact connection of control terminal A and time-delay relay；The control terminal A of the time-delay relay, common end are often connect with power supply with battery, the end the D+ connection of normally-closed contact and generator.The utility model, which is crossed, increases time-delay relay on the circuit of key switch control, can disconnect battery automatically within the set time and often use power supply, prevent battery over-discharge power shortage.
Description
Technical field
The utility model relates to electric motor coach fields, more particularly to one kind for preventing car electrical appliance over-discharge from causing to store
The protection circuit of battery power shortage.
Background technique
Currently, general there are two types of power supplys in the circuit design of car, controlled one is battery by mechanical handle
Often electricity, is commonly referred to as 30 power supplys；One is the electricity controlled by key switch, are commonly referred to as 15 power supplys.30 power supplys are not used directly generally
On the electrical appliance of vehicle, to prevent discharged or defective battery；15 electricity be only vehicle normal work take power supply.However have in the market anti-
Feedback, has driver under vehicle flameout state, forgets to close key electricity, the use of the attachmentes such as television with sounder and heater etc on vehicle
Electric appliance is discharging always, leads to storage battery power shortage, cannot start engine.It not only needs to rescue pump electricity, while being also to battery
A kind of damage, reduce the service life of battery.
Therefore novel prevent the protection circuit of car electrical appliance over-discharge from solving the above problems it is urgent to provide a kind of.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of protection circuit for preventing car electrical appliance over-discharge, energy
Enough batteries that disconnects automatically within the set time often use power supply, prevent battery over-discharge power shortage.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing one kind prevents car from using
The protection circuit of electric appliance over-discharge, the car is equipped with vehicle key power supply, battery often uses power supply, which mainly includes
Battery, low tension bat-handle switch, key electrical relay, time-delay relay, key switch, generator, minus earth；
One end of the low tension bat-handle switch often connect with power supply with battery, the other end respectively with the anode of battery
And key electrical relay is in parallel；
The normally opened contact of the key electrical relay is in parallel with vehicle key power supply, the end B+ of generator respectively, control terminal A
It is connect with the normally opened contact of time-delay relay；
The control terminal A of the time-delay relay, common end are often connect with power supply with battery, normally-closed contact and generator
The end D+ connection；
The cathode of the battery, the control terminal B of key electrical relay, the control terminal B of time-delay relay, generator with
Minus earth connection.
In one preferred embodiment of the utility model, the control of one end, time-delay relay of the low tension bat-handle switch
End A processed and common end pass through a fuse respectively and are often connect with power supply with the battery；
The normally opened contact of the key electrical relay is connect by a fuse with the vehicle key power supply.
The beneficial effects of the utility model are: the utility model circuit structure is simple, pass through the electricity controlled in key switch
Road increases time-delay relay, is within the set time such as starting engine, time-delay relay can disconnect battery automatically
Common power supply, protects battery；Simultaneously by acquisition electrical power generators signal, it can guarantee the normal electricity consumption function of vehicle, from
And solve the problems, such as battery over-discharge power shortage, effectively extend the service life of battery.
Detailed description of the invention
Fig. 1 is the circuit diagram for the protection circuit that the utility model prevents car electrical appliance over-discharge.
The components in the drawings are labeled as follows: 1, battery, 2, low tension bat-handle switch, 3, fuse, 4, key electricity after
Electric appliance K1,5, time-delay relay K2,6, key switch, 7, generator, 8, minus earth.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
Referring to Fig. 1, the utility model embodiment includes:
A kind of protection circuit preventing car electrical appliance over-discharge, the car are equipped with vehicle key power supply and (are as shown in the figure
15 lines), battery often use power supply (as shown in the figure for 30 lines), which mainly includes battery 1, low tension bat-handle switch
2, key electrical relay K1 (4), time-delay relay K2 (5), key switch 6, generator 7, minus earth 8.
One end of the low tension bat-handle switch 2 often connect with power supply with battery, the other end respectively with battery 1 just
Pole and key electrical relay K1 (4) are in parallel；The normally opened contact of the key electrical relay K1 (4) respectively with vehicle key power supply,
The end B+ of generator 7 is in parallel, and control terminal A is connect with the normally opened contact of time-delay relay K2 (5)；The time-delay relay K2 (5)
Control terminal A, common end often connect with power supply with battery, normally-closed contact is connect with the end D+ of generator 7；The battery
1 cathode, the control terminal B of key electrical relay K1 (4), the control terminal B of time-delay relay K2 (5), generator 7 are taken with cathode
Iron 8 connects.
Further, one end of the low tension bat-handle switch 2, the control terminal A of time-delay relay K2 (5) and common end point
It is not often connect with power supply by 50A fuse 3,10A fuse 3,10A fuse 3 with the battery；The key electricity relay
The normally opened contact of device K1 (4) is connect by 80A fuse 3 with the vehicle key power supply；Insured by 5A at the end D+ of generator 7
Silk 3 is connect with the normally-closed contact of time-delay relay K2 (5), with anti-overvoltage.
It is closed key switch 6, time-delay relay K2 (5) control terminal obtains electric, normally opened contact closure, key electrical relay K1
(4) control terminal obtains electric, and vehicle key power supply (15 line) must be electric, and vehicle enters working condition.If setting time (such as
The end generator D+ does not send work electric signal in 10min), i.e. time-delay relay K2 (5) normally-closed contact does not collect power generation
Machine electrical signal will disconnect vehicle key power supply after 10min, and prevent battery over-discharge.If time-delay relay K2 (5) is being set
Electrical power generators signal is collected in fixing time, time-delay relay K2 will be in normally off, and guarantee that the electricity consumption of vehicle will be normal.
The utility model circuit structure is simple, by increasing time-delay relay on the circuit that key switch controls, such as exists
It is starting engine in the time of setting, time-delay relay can disconnect battery automatically and often use power supply, protect battery；Simultaneously
By acquiring electrical power generators signal, it can guarantee the normal electricity consumption function of vehicle, to solve asking for battery over-discharge power shortage
Topic, effectively extends the service life of battery.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (2)
1. a kind of protection circuit for preventing car electrical appliance over-discharge, the car is equipped with the common electricity of vehicle key power supply, battery
Source, which is characterized in that mainly include battery, low tension bat-handle switch, key electrical relay, time-delay relay, key switch,
Generator, minus earth；
One end of the low tension bat-handle switch often connect with power supply with battery, the other end respectively with the anode of battery and key
Spoon electrical relay is in parallel；
The normally opened contact of the key electrical relay is in parallel with vehicle key power supply, the end B+ of generator respectively, control terminal A with prolong
When relay normally opened contact connection；
The control terminal A of the time-delay relay, common end are often connect with power supply with battery, the D+ of normally-closed contact and generator
End connection；
The cathode of the battery, the control terminal B of key electrical relay, the control terminal B of time-delay relay, generator are and cathode
Bonding connection.
2. the protection circuit according to claim 1 for preventing car electrical appliance over-discharge, which is characterized in that the low pressure electric hand
One end of handle switch, the control terminal A of time-delay relay and common end pass through a fuse respectively and the battery often uses power supply
Connection；
The normally opened contact of the key electrical relay is connect by a fuse with the vehicle key power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920218339.7U CN209375122U (en) | 2019-02-21 | 2019-02-21 | Prevent the protection circuit of car electrical appliance over-discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920218339.7U CN209375122U (en) | 2019-02-21 | 2019-02-21 | Prevent the protection circuit of car electrical appliance over-discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209375122U true CN209375122U (en) | 2019-09-10 |
Family
ID=67827138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920218339.7U Expired - Fee Related CN209375122U (en) | 2019-02-21 | 2019-02-21 | Prevent the protection circuit of car electrical appliance over-discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209375122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316993A (en) * | 2023-03-28 | 2023-06-23 | 徐州徐工挖掘机械有限公司 | Protection device for preventing storage battery from being deficient in power, control method and early warning method |
| CN117841875A (en) * | 2024-03-04 | 2024-04-09 | 深圳市星卡科技股份有限公司 | Power supply system control method and device for vehicle and electronic equipment |
-
2019
- 2019-02-21 CN CN201920218339.7U patent/CN209375122U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116316993A (en) * | 2023-03-28 | 2023-06-23 | 徐州徐工挖掘机械有限公司 | Protection device for preventing storage battery from being deficient in power, control method and early warning method |
| CN116316993B (en) * | 2023-03-28 | 2023-09-29 | 徐州徐工挖掘机械有限公司 | Protection device for preventing storage battery from being deficient in power, control method and early warning method |
| CN117841875A (en) * | 2024-03-04 | 2024-04-09 | 深圳市星卡科技股份有限公司 | Power supply system control method and device for vehicle and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190910 |