CN111951516A

CN111951516A - Optical maze with buzzer

Info

Publication number: CN111951516A
Application number: CN202010974879.5A
Authority: CN
Inventors: 郭荣; 肖学波
Original assignee: Shenzhen Fanhai Sanjiang Electronics Co Ltd
Current assignee: Shenzhen Fanhai Sanjiang Electronics Co Ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2020-11-17

Abstract

The invention relates to an optical maze with a buzzer, which comprises a maze body; the inner space of the labyrinth body comprises a smoke detection chamber; a smoke inlet is arranged on the side surface of the labyrinth body; a buzzer is fixedly arranged at the upper end of the labyrinth body in a penetrating way; a pin of the buzzer penetrates into the smoke detection chamber; the shell of the buzzer is not contacted with the smoke inlet; the labyrinth body is provided with a through hole communicated with the outside; the through hole is used for electrically connecting the pin of the buzzer with the circuit board outside the labyrinth body. In the improved optical labyrinth, the buzzer is arranged at the top of the labyrinth body, smoke cannot be blocked when entering the smoke detection chamber from the smoke inlet on the side edge, and the smoke inlet effect is good; simultaneously, with buzzer and maze body integration, overall structure is compacter, is favorable to smoke detector toward miniaturized development. In addition, the electric connection work of the buzzer and the circuit board is conveniently completed by means of the through hole, and when smoke is detected, the circuit board controls the buzzer of the buzzer to vibrate at a specific frequency, so that the purpose of sounding and alarming is achieved.

Description

Optical maze with buzzer

Technical Field

The invention relates to the technical field of optical labyrinths, in particular to an optical labyrinth with a buzzer.

Background

A free standing smoke detector for detecting fires includes a housing, an optical labyrinth, a buzzer, and a circuit board. When a fire disaster happens, smoke flows into the optical maze, and then triggers the buzzer to alarm. In a common smoke detector, the optical maze and the buzzer are arranged side by side and are mutually independent, and the optical maze and the buzzer are welded on a circuit board. Therefore, firstly, the buzzer can shield the smoke inlet of the optical maze to influence the smoke inlet effect; and the second is used as a shell for wrapping the optical maze and the buzzer, and has larger volume.

Disclosure of Invention

The present invention is directed to an optical maze with a buzzer, which overcomes the above-mentioned drawbacks of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows:

an optical maze with a buzzer is provided, which comprises a maze body; the inner space of the labyrinth body comprises a smoke detection chamber; a smoke inlet through which external smoke flows into the smoke detection chamber is formed in the side surface of the labyrinth body; wherein, a buzzer with an outward head is fixedly arranged at the upper end of the labyrinth body in a penetrating way; a pin of the buzzer penetrates into the smoke detection chamber; the shell of the buzzer is not contacted with the smoke inlet; the labyrinth body is provided with a through hole communicated with the outside; the through hole is used for electrically connecting the pin of the buzzer with the circuit board outside the labyrinth body.

Preferably, the through hole is formed in the bottom of the labyrinth body and extends longitudinally.

Preferably, the labyrinth body comprises a labyrinth upper cover and a labyrinth seat which are detachably connected; the smoke inlet and the buzzer are both arranged on the labyrinth upper cover; the labyrinth upper cover and the labyrinth seat are matched to enclose the smoke detection chamber; the through hole is arranged on the labyrinth upper cover or the labyrinth seat.

Preferably, the buzzer is a piezoelectric buzzer; the shell of the buzzer and the labyrinth upper cover are integrally formed.

Preferably, the through hole is formed in an upper surface of the labyrinth upper cover.

Preferably, two groups of limiting rubber rings are fixedly sleeved on the shell of the buzzer; the two groups of limiting rubber rings are distributed on the upper side and the lower side of the labyrinth upper cover; and the two groups of limiting rubber rings are matched to clamp the labyrinth upper cover.

Preferably, the labyrinth body is provided with a plurality of smoke inlets which are uniformly distributed on the circumference; the distribution circle where the smoke inlet is located is coaxial with the labyrinth body; the buzzer is opposite to the middle part of the labyrinth body.

Preferably, the housing of the buzzer is not opposite to the smoke inlet.

Preferably, the labyrinth body is an open box, and the buzzer covers the opening of the labyrinth body.

Preferably, the buzzer is connected with the circuit board through a lead; the through holes are matched with the leads one by one.

The invention has the beneficial effects that: in the improved optical labyrinth, the buzzer is arranged at the top of the labyrinth body, smoke cannot be blocked when entering the smoke detection chamber from the smoke inlet on the side edge, and the smoke inlet effect is good; simultaneously, with buzzer and maze body integration, overall structure is compacter, is favorable to smoke detector toward miniaturized development. In addition, the electric connection work of the buzzer and the circuit board is conveniently completed by means of the through hole, and when smoke is detected, the circuit board controls the buzzer of the buzzer to vibrate at a specific frequency, so that the purpose of sounding and alarming is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:

FIG. 1 is an exploded view of an optical maze with a buzzer according to one embodiment of the present invention;

FIG. 2 is a bottom view of a labyrinth upper cover in an optical labyrinth with a buzzer, according to an embodiment of the present invention;

FIG. 3 is a top view of a labyrinth upper cover in an optical labyrinth with a buzzer according to a second embodiment of the present invention;

fig. 4 is an exploded view of an optical maze with a buzzer according to a third embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.

Example one

The embodiment of the invention provides an optical maze with a buzzer, which is shown in fig. 1-2 and comprises a maze body 10; the inner space of the labyrinth body 10 includes a smoke detection chamber 180; a smoke inlet 181 through which external smoke flows into the smoke detection chamber 180 is formed in a side surface of the labyrinth body 10; a buzzer with an outward head is fixedly arranged at the upper end of the labyrinth body 10 in a penetrating way; the pin of the buzzer penetrates into the smoke detection chamber 180; the housing 12 of the buzzer is not in contact with the smoke inlet 181; the labyrinth body 10 is provided with a through hole (not shown in the drawings) communicating with the outside; the through holes (not shown) are used for electrically connecting the pins of the buzzer with a circuit board (not shown) outside the labyrinth body 10. In the improved optical maze, the buzzer is arranged at the top of the maze body 10, smoke cannot be blocked when entering the smoke detection chamber 180 from the smoke inlet 181 at the side edge, and the smoke inlet effect is good; meanwhile, the buzzer and the labyrinth body 10 are integrated, so that the whole structure is more compact, and the miniaturization development of the smoke detector is facilitated. In addition, the electrical connection work of the buzzer and a circuit board (not shown in the figure) is conveniently completed by virtue of the through hole (not shown in the figure), and when smoke is detected, the circuit board (not shown in the figure) controls the buzzer 13 of the buzzer to vibrate at a specific frequency, so that the aim of sounding and alarming is fulfilled.

As shown in fig. 1, a through hole (not shown) is disposed at the bottom of the labyrinth body 10 and extends longitudinally, so that a pin or a wire can pass through the through hole, and the difficulty of electrical connection is reduced.

As shown in fig. 1, the labyrinth body 10 includes a labyrinth upper cover 14 and a labyrinth seat 15 which are detachably connected, and when a buzzer and a circuit board (not shown in the figure) are electrically connected, the labyrinth upper cover 14 can be opened, so that the electrical connection is more convenient; the smoke inlet 181 and the buzzer are arranged on the labyrinth upper cover 14; the labyrinth upper cover 14 and the labyrinth seat 15 are matched to form a smoke detection chamber 180; through holes (not shown) are provided either on the labyrinth upper cover 14 or on the labyrinth seat 15.

As shown in fig. 1, the buzzer is a piezoelectric buzzer; the shell 12 of the buzzer and the labyrinth upper cover 14 are integrally formed, so that the number of parts is reduced, and the assembly efficiency is improved.

As shown in fig. 1, the labyrinth body 10 is provided with a plurality of smoke inlets 181 which are uniformly distributed on the circumference; the distribution circle of the smoke inlet 181 is coaxial with the labyrinth body 10, so that a good smoke inlet effect is ensured; the buzzer is opposite to the middle part of the labyrinth body 10, so that the appearance is attractive, and sufficient flowing space is provided for smoke.

As shown in fig. 1 to 2, the housing of the buzzer is not opposed to the smoke inlet 181, giving sufficient space for smoke to flow.

As shown in fig. 1, the buzzer and the circuit board (not shown) are connected by a wire (not shown); the through holes (not shown) are adapted to the conductive wires (not shown).

Example two

The embodiment of the invention provides an optical maze with a buzzer, which is the same as the embodiment I and is not repeated, and the difference is as follows:

as shown in fig. 3, the through hole 183 is disposed on the upper surface of the labyrinth upper cover 14, and a lead wire or a pin (not shown) of the buzzer 11 does not need to pass through the smoke detection chamber 180, and does not interfere with smoke detection; meanwhile, the contact between the lead wire or the pin (not shown) of the buzzer 11 and the high-temperature gas can be reduced, and the long service life of the lead wire or the pin (not shown) of the buzzer 11 is ensured.

As shown in fig. 3, two groups of limiting rubber rings 16 are fixedly sleeved on the shell 12 of the buzzer 11; two groups of limiting rubber rings 16 are distributed on the upper side and the lower side of the labyrinth upper cover 14; the two groups of limiting rubber rings 16 are matched with and clamp the labyrinth upper cover 14, and during assembly, the shell 12 of the buzzer 11 penetrates into the labyrinth upper cover 14, so that the assembly and disassembly are convenient.

EXAMPLE III

The embodiment of the invention provides an optical maze with a buzzer, which is the same as the embodiment I and is not repeated, and the difference is as follows: as shown in fig. 4, the labyrinth body 10 is an open box, and the buzzer 11 covers the open 184 of the labyrinth body 10, so that the assembly is convenient.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims

1. An optical maze with a buzzer comprises a maze body; the inner space of the labyrinth body comprises a smoke detection chamber; a smoke inlet through which external smoke flows into the smoke detection chamber is formed in the side surface of the labyrinth body; the labyrinth is characterized in that a buzzer with an outward head is fixedly arranged at the upper end of the labyrinth body in a penetrating way; a pin of the buzzer penetrates into the smoke detection chamber; the shell of the buzzer is not contacted with the smoke inlet; the labyrinth body is provided with a through hole communicated with the outside; the through hole is used for electrically connecting the pin of the buzzer with the circuit board outside the labyrinth body.

2. The optical maze with buzzer as claimed in claim 1, wherein the through hole is formed at the bottom of the maze body and extends longitudinally.

3. The optical maze with buzzer as claimed in claim 1, wherein the maze body comprises a maze upper cover and a maze seat which are detachably connected; the smoke inlet and the buzzer are both arranged on the labyrinth upper cover; the labyrinth upper cover and the labyrinth seat are matched to enclose the smoke detection chamber; the through hole is arranged on the labyrinth upper cover or the labyrinth seat.

4. The optical maze with buzzer as claimed in claim 3, wherein said buzzer is a piezo-electric buzzer; the shell of the buzzer and the labyrinth upper cover are integrally formed.

5. The optical maze with buzzer as claimed in claim 3, wherein the through hole is provided on the upper surface of the maze upper cover.

6. The optical maze with buzzer as claimed in claim 3, wherein two sets of limiting rubber rings are fixed on the housing of the buzzer; the two groups of limiting rubber rings are distributed on the upper side and the lower side of the labyrinth upper cover; and the two groups of limiting rubber rings are matched to clamp the labyrinth upper cover.

7. The optical maze with buzzer as claimed in claim 1, wherein said maze body is provided with a plurality of said smoke inlets uniformly distributed circumferentially; the distribution circle where the smoke inlet is located is coaxial with the labyrinth body; the buzzer is opposite to the middle part of the labyrinth body.

8. The optical maze with buzzer in claim 1, wherein the buzzer has a housing that is not opposite to the smoke inlet.

9. The optical maze with buzzer of claim 1, wherein the maze body is an open box and the buzzer covers the opening of the maze body.

10. The optical maze with buzzer as claimed in claim 1, wherein the buzzer and the circuit board are connected by a wire; the through holes are matched with the leads one by one.