CN219267072U

CN219267072U - Combined fire detector

Info

Publication number: CN219267072U
Application number: CN202223395304.1U
Authority: CN
Inventors: 刘超平; 邢振华; 齐美; 张书伟; 成钊松; 马凤娇
Original assignee: Jade Bird Fire Co Ltd
Current assignee: Jade Bird Fire Co Ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-06-27
Anticipated expiration: 2032-12-13

Abstract

The utility model discloses a composite fire detector which comprises a base, an upper shell, a circuit board, a smoke detection assembly, a carbon monoxide sensor, a temperature sensor, a labyrinth cover and a labyrinth, wherein the smoke detection assembly is electrically connected with the circuit board, the base is clamped with the upper shell, the labyrinth cover is buckled above the labyrinth in a clamping manner, the base and the upper shell are surrounded to form a labyrinth detection chamber, the temperature sensor is suspended at the top of the inner side surface of the upper shell, the carbon monoxide sensor is arranged at the bottom of the labyrinth detection chamber and is opposite to a through hole at the bottom of the labyrinth detection chamber, and a receiving and transmitting terminal of an optical signal transmitter and an optical signal receiver is arranged in the labyrinth detection chamber and completes smoke detection in the detection chamber. The utility model integrates the detection of carbon monoxide, smoke and temperature into one device, and has wider application range.

Description

Combined fire detector

Technical Field

The utility model relates to the field of fire detection, in particular to a composite fire detector.

Background

Traditional detector function singleness only possesses one of functions such as monitoring smog, carbon monoxide, temperature, and the scene of fire in most occasions often needs a plurality of indexes to possess simultaneously, just can scientifically carry out the early warning to the conflagration more, and this just needs a plurality of detectors of installation, has not only improved fire control cost, has increased the risk that fire extinguishing systems breaks down moreover. The range and scenario of single-function detectors is extremely limited.

Disclosure of Invention

The composite fire detector integrates smoke, carbon monoxide and temperature monitoring into one detector, and has wider application range.

In order to solve the technical problems, the utility model provides a composite fire detector which comprises a base, an upper shell, a circuit board, a labyrinth cover and a labyrinth, wherein the base is clamped with the upper shell, the labyrinth cover is buckled above the labyrinth in a clamping manner, a labyrinth detection chamber is formed by surrounding the labyrinth cover and the labyrinth cover, the composite fire detector further comprises a smoke detection assembly, a carbon monoxide sensor and a temperature sensor, the smoke detection assembly is electrically connected with the circuit board, the temperature sensor is suspended at the top of the inner side surface of the upper shell, an air flow channel arranged at the top of the upper shell is opposite to the temperature sensing end of the temperature sensor, the carbon monoxide sensor is arranged at the bottom of the labyrinth detection chamber, the carbon monoxide sensor is opposite to a through hole communicated with the labyrinth detection chamber, the smoke detection assembly comprises a light signal emitter and a light signal receiver, the light signal emitter and the light signal receiver are arranged at the bottom of the labyrinth detection chamber, and the transmitting end of the light signal emitter and the receiving end of the light signal receiver are arranged in the labyrinth detection chamber.

Further, the labyrinth cover comprises a guide plate, wherein the guide plate is arranged at the top of the labyrinth cover, a guide hole is formed in the guide plate, a plurality of guide grids are arranged around the guide hole in the top surface of the guide plate, the guide grids and the upper shell are surrounded to form a guide channel, and the guide channel is used for communicating the vent hole of the upper shell with the guide hole.

Furthermore, the number of the guide grids is 8, and the guide grids are uniformly distributed along the guide holes.

Further, the light guide column is embedded in the upper shell.

Further, the temperature sensor is electrically connected with the circuit board through a transmission element, and the transmission element penetrates through the labyrinth and the labyrinth cover.

Further, an accommodating space is formed in the top of the inner side face of the upper shell, and the temperature sensing end of the temperature sensor is arranged in the accommodating space.

Further, an air flow guide grating is arranged on the periphery of the top of the upper shell, and an air flow channel is formed between two adjacent air flow guide gratings and is communicated with the accommodating space.

Further, the circuit board is provided with a plurality of groups of power supply contacts, the base is provided with power supply terminals corresponding to the power supply contacts, and the power supply terminals are electrically connected with the power supply contacts.

Further, each group of power supply contacts is provided with two spring plates, the two spring plates are respectively positioned on the front side and the back side of the circuit board, each group of power supply terminals is provided with two spring plates, and the two spring plates are respectively electrically connected with the two power supply contacts of the same group.

Further, the power supply contact and the power supply terminal are provided with 4 groups.

The utility model has the technical effects that:

1. the utility model integrates the smoke detection component, the temperature sensor and the carbon monoxide sensor, and has the advantages of comprehensive functions and wide application range;

2. the detection element of the carbon monoxide sensor is opposite to the vent hole communicated with the labyrinth detection chamber, the smoke detection assembly comprises an optical signal emitter and an optical signal receiver, the optical signal emitter and the optical signal receiver are arranged in a mounting hole at the bottom of the labyrinth, the emitting end of the optical signal emitter and the receiving end of the optical signal receiver are positioned in the labyrinth detection chamber, and the smoke detection and the carbon monoxide detection share the same detection chamber, so that good consistency of the product azimuth is guaranteed;

3. the front and back surfaces of the circuit board are provided with the power supply contacts, each group of power supply contacts of the base is provided with two elastic sheets, the two elastic sheets are respectively and electrically connected with the front and back power supply contacts, and when one surface is in contact failure, the other surface can be used for supplying power, so that double insurance of contact is achieved.

Drawings

Fig. 1 is a schematic perspective view of a composite fire detector according to the present utility model.

Fig. 2 is an exploded view of a composite fire detector according to the present utility model.

Fig. 3 is a schematic perspective view of an upper case of a composite fire detector according to the present utility model.

Fig. 4 is a schematic perspective view of a baffle in a composite fire detector according to the present utility model.

Fig. 5 is a bottom view of the upper housing and deflector of the composite fire detector of the present utility model after installation.

Fig. 6 is a bottom view of an upper case of a composite fire detector according to the present utility model.

Fig. 7 is a schematic perspective view of a labyrinth cover, a labyrinth and a circuit board in a composite fire detector according to the present utility model.

Fig. 8 is a bottom view of a maze in a composite fire detector according to the present utility model.

Fig. 9 is a bottom view of a base of a composite fire detector according to the present utility model.

Fig. 10 is a schematic view in the direction A-A of fig. 9.

Reference numerals: 1-upper shell, 2-guide plate, 3-labyrinth cover, 4-labyrinth, 5-circuit board, 6-base, 7-temperature sensor, 8-carbon monoxide sensor, 9-optical signal transmitter, 10-optical signal receiver, 11-air flow guide grating, 12-guide grating, 13-light guide column hole, 14-light guide column, 15-power supply terminal, 16-power supply contact, 17-guide plate, 18-guide hole, 19-mounting hole, 20-through hole.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the utility model, so that those skilled in the art may better understand the utility model and practice it.

The embodiment of the utility model provides a composite fire detector, which is shown in combination with figures 1-5, and comprises a base 6, an upper shell 1, a guide plate 2, a circuit board 5, a labyrinth cover 3 and a labyrinth 4, wherein the base 6 is clamped with the upper shell 1, the labyrinth 4 is clamped with the labyrinth cover 3, the labyrinth cover 3 is buckled above the labyrinth 4 in a clamping manner, the labyrinth cover 3 and the upper shell are surrounded to form a labyrinth detection chamber, the guide plate 2 is arranged above the labyrinth cover 3, the circuit board 5 is arranged between the labyrinth 4 and the base 6, and the guide plate 2 is clamped with the circuit board 5.

In this embodiment, the deflector 2 is provided with the

deflector holes

18, 8 deflector grids 12 are uniformly distributed around the deflector holes 18 on the top surface of the deflector 2, the lower edge of the vent hole of the upper shell 1 is provided with the deflector 17, the deflector 17 is pressed against the deflector 2, the deflector grids 12 and the deflector 17 of the upper shell 1 form a deflector channel, and the deflector channel communicates the vent hole of the upper shell 1 with the deflector holes 18. The smoke and carbon monoxide pass through the diversion channel from the vent hole of the upper shell 1, enter the diversion hole 18, and then enter the labyrinth detecting chamber from the vent hole of the labyrinth cover 3.

The utility model comprises a smoke detection assembly, a carbon monoxide sensor 8 and a temperature sensor 7 electrically connected to a circuit board 5.

Specifically, the temperature sensor 7 is suspended at the top of the inner side surface of the upper shell, the top of the inner side surface of the upper shell is provided with an accommodating space, the temperature sensing end of the temperature sensor 7 is arranged in the accommodating space, and the temperature sensing end is not contacted with the upper shell 1. The periphery at the top of the upper shell 1 is provided with 8 airflow guide grids 11 which are uniformly distributed along the top of the upper shell, an airflow channel is formed between two adjacent airflow guide grids 11, the airflow channel is communicated with the accommodating space, and the outlet of the airflow channel is opposite to the temperature sensing end of the temperature sensor 7.

The carbon monoxide sensor 8 is arranged at the bottom of the labyrinth detecting chamber, and the carbon monoxide sensor 8 is opposite to the through hole 20 communicated with the labyrinth detecting chamber. The carbon monoxide sensor 8 is fixed to the bottom of the labyrinth 4, and the through hole 20 is opened to the bottom of the labyrinth 4.

The smoke detection assembly comprises an optical signal emitter 9 and an optical signal receiver 10, wherein the optical signal emitter 9 and the optical signal receiver 10 are arranged at the bottom of the labyrinth detection chamber, and the emitting end of the optical signal emitter 9 and the receiving end of the optical signal receiver 10 are positioned in the labyrinth detection chamber and complete smoke detection in the detection chamber. The bottom of the maze 4 is provided with 3 mounting holes 19, and two light emitters and 1 light signal receiver 10 are respectively arranged in the 3 mounting holes 19.

In addition, the utility model also comprises a light guide column 14, wherein the upper shell 1 is provided with a light guide column hole 13, and the light guide column 14 is embedded in the light guide column hole 13 of the upper shell 1. The temperature sensor 7 is electrically connected to the circuit board 5 by means of a transmission element which extends through the labyrinth 4 and the labyrinth cover 3.

In this embodiment, 4 sets of power supply contacts 16 are provided on the circuit board 5, power supply terminals 15 corresponding to the power supply contacts 16 are provided on the base 6, and 4 sets of power supply terminals 15 are also provided, and the power supply terminals 15 are electrically connected with the power supply contacts 16. Each group of power supply contacts is provided with two, and is divided into two groups of power supply contacts which are positioned on the front side and the back side of the circuit board 5, each group of power supply terminals 15 is provided with two elastic pieces, and the two elastic pieces are respectively and electrically connected with the two power supply contacts 16 of the same group. When one surface of the base 6 and one surface of the circuit board 5 are in contact failure, the other surface can still supply power, and the contact double-insurance effect is achieved.

The above-described embodiments are merely preferred embodiments for fully explaining the present utility model, and the scope of the present utility model is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present utility model, and are intended to be within the scope of the present utility model. The protection scope of the utility model is subject to the claims.

Claims

1. The utility model provides a combined type fire detector, includes base, epitheca, circuit board, labyrinth cover and maze, base and epitheca joint, the labyrinth cover pass through the mode lock of joint in the top of maze, both enclose into maze detection room, its characterized in that: the smoke detection device comprises a circuit board, a smoke detection assembly, a carbon monoxide sensor and a temperature sensor, wherein the smoke detection assembly is electrically connected with the circuit board, the temperature sensor is suspended at the top of the inner side surface of the upper shell, an air flow channel at the top of the upper shell is opposite to the temperature sensing end of the temperature sensor, the carbon monoxide sensor is arranged at the bottom of the labyrinth detection chamber, the carbon monoxide sensor is opposite to a through hole communicated with the labyrinth detection chamber, the smoke detection assembly comprises an optical signal emitter and an optical signal receiver, the optical signal emitter and the optical signal receiver are arranged at the bottom of the labyrinth detection chamber, and the emitting end of the optical signal emitter and the receiving end of the optical signal receiver are arranged in the labyrinth detection chamber.

2. A composite fire detector according to claim 1, wherein: the labyrinth cover is characterized by further comprising a guide plate, wherein the guide plate is arranged at the top of the labyrinth cover, a guide hole is formed in the guide plate, a plurality of guide grids are arranged around the guide hole on the top surface of the guide plate, the guide grids and the upper shell are surrounded to form a guide channel, and the guide channel is used for communicating the vent hole of the upper shell with the guide hole.

3. A composite fire detector according to claim 2, wherein: the number of the guide grids is 8, and the guide grids are uniformly distributed along the guide holes.

4. A composite fire detector according to claim 1, wherein: the light guide column is embedded in the upper shell.

5. A composite fire detector according to claim 1, wherein: the temperature sensor is electrically connected with the circuit board through a transmission element, and the transmission element penetrates through the labyrinth and the labyrinth cover.

6. A composite fire detector according to claim 1, wherein: the top of upper shell medial surface is equipped with accommodation space, temperature sensor's temperature sensing end is located accommodation space is interior.

7. The composite fire detector of claim 6 wherein: the periphery at top of the upper shell is provided with air flow guide grids, the air flow channels are formed between two adjacent air flow guide grids, and the air flow channels are communicated with the accommodating space.

8. A composite fire detector according to claim 1, wherein: the circuit board is provided with a plurality of groups of power supply contacts, the base is provided with power supply terminals corresponding to the power supply contacts, and the power supply terminals are electrically connected with the power supply contacts.

9. The composite fire detector of claim 8 wherein: each group of power supply contacts is provided with two spring plates, the two spring plates are respectively positioned on the front side and the back side of the circuit board, each group of power supply terminals is provided with two spring plates, and the two spring plates are respectively and electrically connected with the two power supply contacts of the same group.

10. The composite fire detector of claim 8 wherein: the power supply contact and the power supply terminal are provided with 4 groups.