CN203851115U - Storage battery audio type storage battery over-discharge protection device - Google Patents
Storage battery audio type storage battery over-discharge protection device Download PDFInfo
- Publication number
- CN203851115U CN203851115U CN201420284821.8U CN201420284821U CN203851115U CN 203851115 U CN203851115 U CN 203851115U CN 201420284821 U CN201420284821 U CN 201420284821U CN 203851115 U CN203851115 U CN 203851115U
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- Prior art keywords
- storage battery
- relay
- switch
- comparator
- dual
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- Expired - Fee Related
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Abstract
The utility model provides a storage battery audio type storage battery over-discharge protection device, which comprises a dual-channel relay, a first switch, a second switch and a comparator. The first switch controls the voltage of a storage battery to power up both the relay coil of the dual-channel relay and the comparator at the same time. The comparator outputs a low level and a high level to control the on/off state of a transistor. The transistor is configured to control the on/off state of the relay coil of the dual-channel relay. When the relay coil of the dual-channel relay is switched on, the relay powers up a storage battery audio power amplifier. Once the storage battery runs out of power or is full of power, the second switch is pressed down. Therefore, the storage battery and the power amplifier are completely disconnected with each other, and the over-discharge of the storage battery is protected. In this way, the current of the storage battery is ensured to be absolutely zero, so that the service life of the storage battery is prolonged.
Description
Technical field
The utility model relates to sound technique field, the device of during more specifically to a kind of overdischarge of the sound equipment that utilizes storage battery power supply, storage battery being protected.
Background technology
The existing sound equipment that utilizes storage battery power supply; some storage battery is to adopting hard switching on sound equipment current supply circuit; the large electric current of so easy generation damages storage battery; some adopts CPU to carry out control relay; some adopts the quiet protection of sound equipment power amplifier, and these electric currents that all can not definitely ensure storage battery are zero, the in the situation that of client's improper use; accumulator electrode is fragile, is further improved.
Summary of the invention
The purpose of this utility model is exactly the deficiency for prior art; and provide a kind of storage battery sound equipment storage battery overdischarge protector; it can thoroughly protect the overdischarge of storage battery; in the time that the storage battery electric weight in storage battery sound equipment is not enough; storage battery and amplifirer are thoroughly disconnected; the electric current that ensures storage battery is definitely zero, thereby extends the useful life of storage battery.
Technology solution of the present utility model is as follows:
Storage battery sound equipment storage battery overdischarge protector; comprise two-way relay, the first switch, second switch and comparator; the voltage of the first switch control storage battery is given relay coil and the comparator power supply of two-way relay simultaneously; comparator output low level and high level control triode conducting and cut-off; relay coil adhesive and the disconnection of triode control two-way relay; when the relay coil adhesive of relay, relay is powered to storage battery sound power amplifier.
The anode input of described comparator is connected with the second diode, and the input of comparator negative terminal is connected with second switch.
The 6th pin output voltage of described two-way relay is to the power supply of storage battery sound power amplifier, and the first switch and second switch are button switch or touch-switch.
The beneficial effects of the utility model are:
It can thoroughly protect the overdischarge of storage battery, in the time that the storage battery electric weight in storage battery sound equipment is not enough, storage battery and amplifirer is thoroughly disconnected, and ensures that the electric current of storage battery is definitely zero, thus the useful life of prolongation storage battery.
brief description of the drawings:
Fig. 1 is circuit diagram of the present utility model.
embodiment:
Embodiment: as shown in Figure 1; storage battery sound equipment storage battery overdischarge protector; comprise two-way relay J, the first K switch 1, second switch K2 and comparator A; the first K switch 1 is controlled the voltage of storage battery E and is powered to relay coil L and the comparator A of two-way relay J simultaneously; comparator A output low level and the Q2 conducting of high level control triode and cut-off; triode Q2 controls relay coil L adhesive and the disconnection of two-way relay J; when the relay coil L adhesive of relay J, relay J is powered to storage battery sound power amplifier B.
The anode input of described comparator A is connected with the second diode D2, and the input of comparator A negative terminal is connected with second switch K1.
The 6th pin output voltage of described two-way relay J is to storage battery sound power amplifier B power supply, and the first K switch 1 and second switch K2 are button switch or touch-switch.
Operation principle: in the time that the first K switch 1 is pressed, storage battery E voltage is given relay coil L and comparator A power supply simultaneously, comparator A negative terminal input high level, and the anode of comparator A is inputted by the second diode D2 clamper (0.65V), so comparator A output low level, triode Q2 conducting, relay coil L adhesive, at this moment 3 of relay J, 4,5,6 pin are connected, the first K switch 1 is unclamped rear relay J and is powered to its coil and comparator A through 5 pin by 3,4 pin, so just keeps output voltage to storage battery sound power amplifier B always.
In the time that storage battery E voltage is low to moderate certain value (12V storage battery 9.6V); comparator A exports high level, triode Q2 cut-off, and relay J disconnects; storage battery E electric current is over the ground definitely zero, and the storage battery of so having protected up hill and dale storage battery audio amplifier damages the phenomenon of storage battery because of overdischarge.The storage battery sound equipment that has effectively solved user, dealer and producer is flimsy trouble and worry because storage battery holds.
The effect of second switch K1 is shutdown, click second switch K1, the negative terminal of comparator A is input as low level, output high level, three and pipe Q2 cut-off, at this moment no matter storage battery E electric weight has how sufficient relay J all can disconnect, must heavily just can again make the relay coil L adhesive of relay J by second switch K1 and power to storage battery sound power amplifier B.
Claims (3)
1. storage battery sound equipment storage battery overdischarge protector, comprise two-way relay (J), the first switch (K1), second switch (K2) and comparator (A), it is characterized in that: the first switch (K1) is controlled the voltage of storage battery (E) and powered to relay coil (L) and the comparator (A) of two-way relay (J) simultaneously, comparator (A) output low level and (Q2) conducting of high level control triode and cut-off, triode (Q2) is controlled relay coil (L) adhesive and the disconnection of two-way relay (J), when relay coil (L) adhesive of relay (J), relay (J) is given storage battery sound power amplifier (B) power supply.
2. storage battery sound equipment storage battery overdischarge protector according to claim 1, is characterized in that: the anode input of comparator (A) is connected with the second diode (D2), and the input of comparator (A) negative terminal is connected with second switch (K1).
3. storage battery sound equipment storage battery overdischarge protector according to claim 1; it is characterized in that: the 6th pin output voltage of two-way relay (J) is powered to storage battery sound power amplifier (B); the model of two-way relay (J) is 393 types, and the first switch (K1) and second switch (K2) are button switch or touch-switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284821.8U CN203851115U (en) | 2014-05-30 | 2014-05-30 | Storage battery audio type storage battery over-discharge protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420284821.8U CN203851115U (en) | 2014-05-30 | 2014-05-30 | Storage battery audio type storage battery over-discharge protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203851115U true CN203851115U (en) | 2014-09-24 |
Family
ID=51564081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420284821.8U Expired - Fee Related CN203851115U (en) | 2014-05-30 | 2014-05-30 | Storage battery audio type storage battery over-discharge protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203851115U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186521A (en) * | 2015-10-16 | 2015-12-23 | 珠海格力电器股份有限公司 | Circuit filtering power grid ripple and filtering method thereof |
-
2014
- 2014-05-30 CN CN201420284821.8U patent/CN203851115U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186521A (en) * | 2015-10-16 | 2015-12-23 | 珠海格力电器股份有限公司 | Circuit filtering power grid ripple and filtering method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160922 Address after: Baiyun District of Guangzhou City, Guangdong province 510440 Wo Street Shima Industrial Zone No. 13 2 street Xipu Patentee after: Guangzhou strong sound equipment Co., Ltd. Address before: Shima Baiyun District of Guangzhou City, Guangdong province 510440 Taoyuan Street No. 21 Patentee before: Liu Guolin |
|
| 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: 20140924 Termination date: 20180530 |