CN216772556U - Wall-mounted fire alarm controller - Google Patents
Wall-mounted fire alarm controller Download PDFInfo
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- CN216772556U CN216772556U CN202122698972.0U CN202122698972U CN216772556U CN 216772556 U CN216772556 U CN 216772556U CN 202122698972 U CN202122698972 U CN 202122698972U CN 216772556 U CN216772556 U CN 216772556U
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Abstract
The utility model provides a wall-mounted fire alarm controller, which comprises a shell (1), a flip cover (2), a key board, a battery and a battery over-discharge protection circuit, wherein the key board is arranged on the shell; the shell (1) is movably connected with the flip cover (2) through a hinge rotating shaft; the key board is embedded in the middle of the flip cover (2); the battery is arranged in the lower part of the shell (1); the battery over-discharge protection circuit is arranged inside the shell (1). The right side of the flip cover (2) is provided with a lock cylinder (6). The battery over-discharge protection circuit comprises a comparison circuit unit, a battery input unit, a feedback network circuit, a battery voltage sampling circuit, a TL431 reference source circuit, a voltage division network unit circuit, a power output unit and a diode reverse-phase protection unit. The fire alarm device can effectively protect the safe operation of the battery in the fire alarm device, and avoids the battery from being scrapped due to over discharge by adjusting the charging and discharging process of the battery.
Description
Technical Field
The utility model relates to the technical field of fire alarm controllers, in particular to a wall-mounted fire alarm controller.
Background
The fire alarm controller is the core of the fire automatic alarm system, can supply power to the detector, is used for receiving a fire signal and starting a fire alarm device, can also be used for indicating a fire part and related information, can also start the fire alarm signal through a fire alarm sending device or start an automatic fire extinguishing device and a fire fighting linkage control device through an automatic fire fighting control device, and can also automatically monitor the correct operation of the system and give sound and light alarm to specific faults.
The existing fire alarm controllers have various types, but when the existing fire alarm controllers are used, the fire alarm controllers cannot normally operate due to over-discharge of batteries, so that the fire alarm controllers with the battery over-discharge protection function are needed.
The application number is CN 201621008853.0's china utility model discloses a special fire alarm controller of locomotive year, the power distribution box comprises a box body, establish fire alarm controller host computer in the box, box front portion ann display screen and operation panel, fixing base under the ann of bottom half, lower fixing base is connected with locomotive carriage bottom, be connected through the roating seat between lower fixing base and the box, the fixing base is established on box upper portion, it is connected with locomotive carriage top to go up the fixing base, the through-hole is seted up at the box top, through-hole fit ann rotary disk, establish the ball between rotary disk and the through-hole, establish the protection tube between rotary disk and the last fixing base, establish the wiring of fire alarm controller host computer in the protection tube. The utility model discloses a can be according to locomotive traffic direction adjustment fire alarm controller direction, when the locomotive reachs the terminal point and need reverse return journey, rotate whole box, make box direction and original opposite direction, through the roating seat fixed position again, can the position of short-term judgement after the conflagration accident takes place, carry out the fire control and handle. The utility model discloses a main objective of design is in order to satisfy the on-vehicle use of fire alarm controller at the locomotive to can not satisfy the overdischarge protection of fire alarm controller battery.
The utility model relates to the technical field of fire alarm controllers, in particular to an intelligent fire-fighting and fire-proof alarm controller with an embedded structure, which comprises a wall body, wherein the surface of the wall body is provided with a mounting groove, a fire alarm controller body is arranged in the mounting groove, the surface of the fire alarm controller body is provided with a lifting corner protection pad, the outer side of the fire alarm controller body is sleeved with a lantern ring, the outer side of the fire alarm controller body is sleeved with a fixed plate, the surface of the fixed plate is provided with a buckle ring, the surface of the buckle ring is provided with a sealing ring, and the surface of the fixed plate is provided with a connecting screw; the beneficial effects are that: according to the intelligent fire-fighting and fire-preventing alarm controller with the embedded structure, the lifting corner protection pad is additionally arranged on the back plate, so that a heat dissipation space is isolated between the fire alarm controller body and the mounting groove, and the through hole is formed in the fixing plate to dissipate heat between the fire alarm controller body and the groove body, so that the temperature reduction treatment of the fire alarm controller body is realized. The utility model discloses a mainly be in order to provide one kind can be embedded in the fire alarm controller of wall body to the overdischarge protection of the inside battery of alarm has.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a wall-mounted fire alarm controller, which aims to solve the problem that the existing design cannot provide an over-discharge protection function for a battery in the controller.
In order to achieve the purpose, the technical scheme of the utility model is as follows: a wall-mounted fire alarm controller comprises a shell, a flip cover, a key board, a battery and a battery over-discharge protection circuit; the shell is movably connected with the flip through a hinge rotating shaft; the key board is embedded in the middle of the flip; the battery is arranged in the lower part of the shell; the battery over-discharge protection circuit is arranged inside the shell. The battery over-discharge protection circuit comprises a comparison circuit unit, a battery input unit, a feedback network circuit, a battery voltage sampling circuit, a TL431 reference source circuit, a voltage division network unit circuit, a power output unit and a diode reverse-phase protection unit; the input end of the battery voltage sampling circuit is connected with the battery, and the output end of the battery voltage sampling circuit is connected with the corner circuit unit; the output end of the TL431 reference source circuit is connected with the comparison circuit unit; the output end of the voltage division network unit circuit is connected with the comparison circuit unit; the feedback network circuit feeds back a feedback signal to the comparison circuit unit, and the output end of the comparison circuit unit is connected with the power output unit and the diode reverse protection unit; the battery input unit provides power for the comparison circuit unit, the feedback network circuit, the battery voltage sampling circuit, the TL431 reference source circuit, the voltage division network unit circuit, the power output unit and the diode reverse protection unit.
Preferably, a lock cylinder is arranged on the right side of the turnover cover.
Preferably, the key sheet includes a first key sheet, a second key sheet and a third key sheet; the first key board is arranged above the middle part of the turnover cover; the second key board and the third key board are arranged below the first key board in sequence.
Preferably, the two sides of the shell are provided with heat dissipation through holes.
Preferably, a battery fixing frame is arranged in the shell; the fixed mount is fixed in the lower part of the inner part of the shell through screws.
Preferably, the circuit operation principle is to use an operational amplifier to realize the function of a hysteresis comparator. The principle that the output of the hysteresis comparator has the return difference comparison characteristic is utilized, the under-voltage protection locking of the battery is realized, and the function of normal power supply is recovered again after the battery is charged to a higher electric quantity level. In this way, the battery protection function is realized, and the battery is prevented from being drained and scrapped. The power supply of the circuit system is taken from a 24V lead-acid battery, a TL431 generates a 2.5V reference standard, a hysteresis comparator circuit is formed by an LM393, and the circuit parameters are adjusted to realize the functions of turning off the output when the battery voltage is lower than 19V and turning on the power supply output when the battery voltage is higher than 24.3V.
The battery over-discharge protection circuit maintains the battery voltage at 19-24.3V.
The utility model has the beneficial effects that:
the safe operation that can the inside battery of effectual protection fire alarm, through the process of filling of adjusting the battery, avoid overdischarging to make the battery scrap.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention
FIG. 2 is an over-discharge protection circuit for a battery according to the present invention
FIG. 3 is a schematic view of the flip cover structure of the present invention
FIG. 4 is a schematic diagram of a first keypad structure
FIG. 5 is a schematic diagram of a second keypad structure
Fig. 6 is a second key sheet decorative cover
FIG. 7 is a schematic view of a battery holder
FIG. 8 is a circuit diagram of the battery protection circuit of the present invention
FIG. 9 is an overall top view of the utility model
The key comprises a shell 1, a flip 2, a first key board 3, a second key board 4, a third key board 5 and a lock cylinder 6.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Example 1
In the embodiment, the wall-mounted fire alarm controller comprises a shell 1, a flip cover 2, a key board, a battery and a battery over-discharge protection circuit; the shell 1 is movably connected with the flip cover 2 through a hinge rotating shaft; the key board is embedded in the middle of the flip cover 2; the battery is arranged in the lower part of the shell 1; the battery over-discharge protection circuit is mounted inside the housing 1. The battery over-discharge protection circuit comprises a comparison circuit unit, a battery input unit, a feedback network circuit, a battery voltage sampling circuit, a TL431 reference source circuit, a voltage division network unit circuit, a power output unit and a diode reverse-phase protection unit; the input end of the battery voltage sampling circuit is connected with the battery, and the output end of the battery voltage sampling circuit is connected with the corner circuit unit; the output end of the TL431 reference source circuit is connected with the comparison circuit unit; the output end of the voltage division network unit circuit is connected with the comparison circuit unit; the feedback network circuit feeds back a feedback signal to the comparison circuit unit, and the output end of the comparison circuit unit is connected with the power output unit and the diode reverse protection unit; the battery input unit provides power for the comparison circuit unit, the feedback network circuit, the battery voltage sampling circuit, the TL431 reference source circuit, the voltage division network unit circuit, the power output unit and the diode reverse protection unit.
In this embodiment, the right side of the flip 2 is provided with a lock cylinder 6.
In this embodiment, the key sheet includes a first key sheet 3, a second key sheet 4, and a third key sheet 5; the first key board 1 is arranged above the middle part of the turnover cover 2; the second key sheet 2 and the third key sheet 5 are arranged in order below the first key sheet.
In this embodiment, the two side edges of the housing 1 are provided with heat dissipation through holes.
In this embodiment, a battery holder is disposed inside the housing 1; the fixed frame is fixed at the lower part of the inner part of the shell 1 through screws.
In this embodiment, when the voltage of the battery is lower than 19V, the comparison circuit unit adjusts the circuit parameters to turn off the output of the battery, so that the electric quantity of the battery is not over-discharged.
Example 2:
in the embodiment, the wall-mounted fire alarm controller comprises a shell 1, a flip cover 2, a key board, a battery and a battery over-discharge protection circuit; the shell 1 is movably connected with the flip cover 2 through a hinge rotating shaft; the key board is embedded in the middle of the flip cover 2; the battery is arranged in the lower part of the shell 1; the battery over-discharge protection circuit is mounted inside the housing 1.
In this embodiment, the right side of the flip 2 is provided with a lock cylinder 6.
In this embodiment, the key sheet includes a first key sheet 3, a second key sheet 4, and a third key sheet 5; the first key board 1 is arranged above the middle part of the turnover cover 2; the second key sheet 2 and the third key sheet 5 are arranged in order below the first key sheet.
In this embodiment, the two side edges of the housing 1 are provided with heat dissipation through holes.
In this embodiment, a battery fixing frame is arranged inside the housing 1; the fixed mount is fixed below the inner part of the shell 1 through screws.
In this embodiment, the battery over-discharge protection circuit includes a comparison circuit unit, a battery input unit, a feedback network circuit, a battery voltage sampling circuit, a TL431 reference source circuit, a voltage division network unit circuit, a power output unit, and a diode reverse-phase protection unit; the input end of the battery voltage sampling circuit is connected with the battery, and the output end of the battery voltage sampling circuit is connected with the corner circuit unit; the output end of the TL431 reference source circuit is connected with the comparison circuit unit; the output end of the voltage division network unit circuit is connected with the comparison circuit unit; the feedback network circuit feeds back a feedback signal to the comparison circuit unit, and the output end of the comparison circuit unit is connected with the power output unit and the diode reverse protection unit; the battery input unit provides power for the comparison circuit unit, the feedback network circuit, the battery voltage sampling circuit, the TL431 reference source circuit, the voltage division network unit circuit, the power output unit and the diode reverse protection unit.
In this embodiment, when the electric quantity of the battery is greater than 24.3V, the comparison circuit unit adjusts the circuit parameters, and turns on the output function of the battery, so that the battery is not overcharged.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. A wall-mounted fire alarm controller is characterized by comprising a shell (1), a flip cover (2), a key board, a battery and a battery over-discharge protection circuit; the shell (1) is movably connected with the flip cover (2) through a hinge rotating shaft; the key board is embedded in the middle of the flip cover (2); the battery is arranged in the lower part of the shell (1);
the battery over-discharge protection circuit is arranged in the shell (1) and comprises a comparison circuit unit, a battery input unit, a feedback network circuit, a battery voltage sampling circuit, a TL431 reference source circuit, a voltage division network unit circuit, a power output unit and a diode reverse-phase protection unit; the input end of the battery voltage sampling circuit is connected with the battery, and the output end of the battery voltage sampling circuit is connected with the corner circuit unit; the output end of the TL431 reference source circuit is connected with the comparison circuit unit; the output end of the voltage division network unit circuit is connected with the comparison circuit unit; the feedback network circuit feeds back a feedback signal to the comparison circuit unit, and the output end of the comparison circuit unit is connected with the power output unit and the diode reverse protection unit; the battery input unit provides power for the comparison circuit unit, the feedback network circuit, the battery voltage sampling circuit, the TL431 reference source circuit, the voltage division network unit circuit, the power output unit and the diode reverse protection unit.
2. A wall-mounted fire alarm controller as claimed in claim 1, wherein the right side of the flip cover (2) is provided with a lock cylinder (6).
3. A wall-mounted fire alarm controller as defined in claim 1, wherein the keypad comprises a first keypad (3), a second keypad (4) and a third keypad (5); the first key board (3) is arranged above the middle part of the turnover cover (2); the second key board (4) and the third key board (5) are arranged in sequence under the first key board.
4. A wall-mounted fire alarm controller according to claim 1, wherein heat dissipating through holes are formed at both side edges of the housing (1).
5. A wall-mounted fire alarm controller according to claim 4, characterised in that a battery holder is provided inside the housing (1); the fixed mount is fixed below the inner part of the shell (1) through screws.
6. The wall-mounted fire alarm controller of claim 1, wherein the battery over-discharge protection circuit maintains the battery voltage at 19-24.3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122698972.0U CN216772556U (en) | 2021-11-05 | 2021-11-05 | Wall-mounted fire alarm controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122698972.0U CN216772556U (en) | 2021-11-05 | 2021-11-05 | Wall-mounted fire alarm controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216772556U true CN216772556U (en) | 2022-06-17 |
Family
ID=81960568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122698972.0U Active CN216772556U (en) | 2021-11-05 | 2021-11-05 | Wall-mounted fire alarm controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216772556U (en) |
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2021
- 2021-11-05 CN CN202122698972.0U patent/CN216772556U/en active Active
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