CN207234399U - A kind of display for external storage battery protects circuit - Google Patents
A kind of display for external storage battery protects circuit Download PDFInfo
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- CN207234399U CN207234399U CN201721000010.0U CN201721000010U CN207234399U CN 207234399 U CN207234399 U CN 207234399U CN 201721000010 U CN201721000010 U CN 201721000010U CN 207234399 U CN207234399 U CN 207234399U
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- relay
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- storage battery
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- display
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Abstract
A kind of display for external storage battery protects circuit, includes input terminal CN1, and input interface CN3 and input interface CN2；Relay J is connected between the input interface CN3 and input terminal CN1, the relay J is 6 foot relay of photoelectric coupling type, 1 foot and 2 feet of relay J is selectively connected with input terminal CN1, diode D1 is parallel with the relay J, the cathode of the diode D1 is connected with 6 feet of relay J, its anode is connected with 5 feet of relay J, and the relay J is set with to start to control voltage and start to control a little and is connected so as to start to control its 1 foot and 2 feet when voltage starts to control higher than it with input terminal CN1 closures.The on or off of circuit is realized by the selection of the diode D1 characteristics being reversely not turned on and relay J operation voltage points in the utility model, so as to fulfill the protection to mainboard in display and each chip, and reduces storage battery（Storage battery）The loss of the energy, lifts storage battery（Storage battery）Service life purpose.
Description
【Technical field】
It the utility model is related to a kind of display for external storage battery and protect circuit.
【Background technology】
External 12V storage batterys currently on the market（Storage battery）All LCD TVs and display without any protection electricity
Road, after positive and negative plate is reversed, will result in the problem of damaging mainboard；In addition current mainboard external power supply is the work of 12V ± 5%
Voltage, but each chip operating voltage in circuit is using 3.3V, therefore work as external 12V storage batterys（Storage battery）It is less than
During 11V, although complete machine can not work normally, still reach the chip operating voltage of 3.3V, so still in consumption storage battery（Store
Battery）Electricity, causes the loss of the energy and reduces storage battery（Storage battery）Service life.
For the above situation, a solution is we provided.
【Utility model content】
The purpose of this utility model be to have overcome the deficiencies of the prior art and provide it is a kind of reversed in accumulator anode and cathode
Afterwards, the circuit between display can be cut off, that protection is played to the mainboard in display and chip is used for external storage battery
Display protection circuit.
In order to solve above-mentioned technical problem, the utility model takes following technical proposals：
A kind of display for external storage battery protects circuit, includes the input terminal CN1 of display, and with it is external
The input interface CN3 and input interface CN2, the input interface CN3 and input interface CN2 and input terminal of storage battery connection
CN1 connections；It is photoelectric coupling type that relay J, the relay J are connected between the input interface CN3 and input terminal CN1
6 foot relays, 1 foot and 2 feet of relay J are selectively connected with input terminal CN1, and diode is parallel with the relay J
D1, the cathode of the diode D1 are connected with 6 feet of relay J, its anode is connected with 5 feet of relay J, the relay J
It is set with to start to control voltage and start to control a little and is connected so as to start to control its 1 foot and 2 feet when voltage starts to control higher than it with input terminal CN1 closures.
In further improvement project, capacitance C1, the C1 are provided between the relay J and input terminal CN1
Cathode be connected with 1 foot of relay J, the anode of the C1 is connected with 2 feet of relay J.
In further improvement project, diode D2, the sun of the diode D2 are in series with the diode D1
Pole is connected with the anode of diode D1,5 feet of relay J, its minus earth.
In further improvement project, the input terminal CN1 includes 4 ports, its input terminal 1 and input terminal 2
Ground connection, its input terminal 3 and input terminal 4 are connected with the anode of capacitance C1.
In further improvement project, the input interface CN2 includes 4 ports, its input terminal 1 and input terminal
2 ground connection, its input terminal 3 and input terminal 4 are connected with the cathode of capacitance C1.
Compared with prior art, the beneficial effects of the utility model are：In the utility model by diode D1 reversely not
The characteristic of conducting and selecting to realize the on or off of circuit, so as to fulfill in display for relay J operation voltage points
The protection of mainboard and each chip, and reduce storage battery（Storage battery）The loss of the energy, lifts storage battery（Storage battery）Service life
Purpose.
The utility model is further illustrated with reference to the accompanying drawings and detailed description：
【Brief description of the drawings】
Fig. 1 is the circuit connection diagram of the utility model embodiment；
【Embodiment】
A kind of display for external storage battery protects circuit, as shown in Figure 1, include the input terminal CN1 of display,
And the input interface CN3 and input interface CN2, the input interface CN3 and input interface CN2 being connected with external storage battery
It is connected with input terminal CN1；It is light that relay J, the relay J are connected between the input interface CN3 and input terminal CN1
The box-like 6 foot relay of thermocouple, 1 foot and 2 feet of relay J are selectively connected with input terminal CN1, in parallel on the relay J
There is diode D1, the cathode of the diode D1 is connected with 6 feet of relay J, its anode is connected with 5 feet of relay J, described
Relay J is set with to start to control voltage and start to control a little and is closed so as to start to control its 1 foot and 2 feet when voltage starts to control higher than it with input terminal CN1
Close connection.
In embodiment, the voltage that starts to control of relay J starts to control and is a little set as 9V, when the input voltage at input interface CN3 ends
During higher than 9V（That is the positive and negative anodes connection of storage battery/storage battery is correct）, relay J 5, the photoelectrical coupler of 6 feet start to act, make
The action that normal open switch at 1,2 feet of relay J is closed, is conducted to the circuit of input terminal CN1, makes input terminal CN1 defeated
Go out voltage to work to rear end；Similarly, when the input voltage at input interface CN3 ends is less than 9V（That is the positive and negative anodes of storage battery/storage battery
It is reversed）, relay J 5, the photoelectrical coupler of 6 feet start stopping action, and make the normal open switch at the 1 of relay J, 2 feet extensive
Normally opened state is arrived again, can not thus be conducted to the circuit of input terminal CN1, and no-voltage inputs at input terminal CN1, i.e. no-voltage
Rear end work is output to, is on the one hand played a protective role to the mainboard and each chip of the display interior of rear end, on the other hand
Make storage battery（Storage battery）Non voltage output, reduces storage battery（Storage battery）The loss of the energy and lifting storage battery（Storage battery）Use
Service life.
In the utility model, due to being parallel with two poles in the relay J between input interface CN3 and input terminal CN1
5,6 feet of pipe D1, diode D1 and relay J are in parallel, and 6 feet of relay J are anode tap, and 5 feet are cathode terminal, utilize two poles
Pipe D1 is reversely not turned on principle, reversed when positive and negative anodes after, the characteristics of 6 foot current potentials are lower than 5 foot current potentials in relay J, makes relay
Photoelectrical coupler in device J does not work, so that the 1 of relay J, 2 feet maintain a normally open state, so that input can not be conducted to
Hold the circuit of CN1, it is seen then that the utility model is solved after positive and negative anodes are reversed, storage battery（Storage battery）The circuit between display
The problem of still turning on, has cut off the power supply to display, has played protective effect, reduced storage battery（Storage battery）The damage of the energy
Become estranged and lift storage battery（Storage battery）Service life.
In embodiment, as shown in Figure 1, being provided with capacitance C1, the C1 between the relay J and input terminal CN1
Cathode be connected with 1 foot of relay J, the anode of the C1 is connected with 2 feet of relay J.
In embodiment, as shown in Figure 1, being in series with diode D2, the sun of the diode D2 on the diode D1
Pole is connected with the anode of diode D1,5 feet of relay J, its minus earth.
In embodiment, as shown in Figure 1, the input terminal CN1 includes 4 ports, its input terminal 1 and input terminal 2
Ground connection, its input terminal 3 and input terminal 4 are connected with the anode of capacitance C1.
In embodiment, as shown in Figure 1, the input interface CN2 includes 4 ports, its input terminal 1 and input terminal
2 ground connection, its input terminal 3 and input terminal 4 are connected with the cathode of capacitance C1.
Although the utility model is described in detail with reference to above example, by the disclosure for people in the art
Member is not it is readily apparent that and departing from the principle of the utility model and the situation of scope of the claim restriction
Under, the utility model can be made a variety of changes or be changed.Therefore, the detailed description of the embodiment of the present disclosure is only used for explaining, and
The utility model is not intended to limit, but is defined by the subject-matter of the claims the scope of protection.
Claims (5)
1. a kind of display for external storage battery protects circuit, it is characterised in that include the input terminal CN1 of display,
And the input interface CN3 and input interface CN2, the input interface CN3 and input interface CN2 being connected with external storage battery
It is connected with input terminal CN1；It is light that relay J, the relay J are connected between the input interface CN3 and input terminal CN1
The box-like 6 foot relay of thermocouple, 1 foot and 2 feet of relay J are selectively connected with input terminal CN1, in parallel on the relay J
There is diode D1, the cathode of the diode D1 is connected with 6 feet of relay J, its anode is connected with 5 feet of relay J, described
Relay J is set with to start to control voltage and start to control a little and is closed so as to start to control its 1 foot and 2 feet when voltage starts to control higher than it with input terminal CN1
Close connection.
2. a kind of display for external storage battery according to claim 1 protects circuit, it is characterised in that described
The cathode that capacitance C1, the C1 are provided between relay J and input terminal CN1 is connected with 1 foot of relay J, and the C1's is negative
Pole is connected with 2 feet of relay J.
3. a kind of display for external storage battery according to claim 2 protects circuit, it is characterised in that described
Diode D2 is in series with diode D1, the anode of the diode D2 is connected with 5 feet of the anode of diode D1, relay J,
Its minus earth.
4. a kind of display for external storage battery according to claim 3 protects circuit, it is characterised in that described
Input terminal CN1 includes 4 ports, its input terminal 1 and input terminal 2 are grounded, its input terminal 3 and input terminal 4 are negative with capacitance C1's
Pole connects.
5. a kind of display for external storage battery according to claim 4 protects circuit, it is characterised in that described
Input interface CN2 includes 4 ports, its input terminal 1 and input terminal 2 are grounded, its input terminal 3 and input terminal 4 are with capacitance C1's
Cathode connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721000010.0U CN207234399U (en) | 2017-08-10 | 2017-08-10 | A kind of display for external storage battery protects circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721000010.0U CN207234399U (en) | 2017-08-10 | 2017-08-10 | A kind of display for external storage battery protects circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207234399U true CN207234399U (en) | 2018-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721000010.0U Active CN207234399U (en) | 2017-08-10 | 2017-08-10 | A kind of display for external storage battery protects circuit |
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| Country | Link |
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| CN (1) | CN207234399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332229A (en) * | 2017-08-10 | 2017-11-07 | 珠海经济特区金品电器有限公司 | A kind of display protection circuit for external battery |
-
2017
- 2017-08-10 CN CN201721000010.0U patent/CN207234399U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332229A (en) * | 2017-08-10 | 2017-11-07 | 珠海经济特区金品电器有限公司 | A kind of display protection circuit for external battery |
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