CN213123260U

CN213123260U - Temperature-sensing smoke detector with high sensitivity

Info

Publication number: CN213123260U
Application number: CN202022116997.0U
Authority: CN
Inventors: 吴志文
Original assignee: Shenzhen Bingtech Science And Technology Co ltd
Current assignee: Shenzhen Bingtech Science And Technology Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-05-04
Anticipated expiration: 2030-09-23

Abstract

The utility model relates to a detector technical field discloses a temperature sensing smoke detector with high sensitivity, which comprises a housin, bottom and metal mesh enclosure, the upper end setting of casing is located to bottom detachable lid, be equipped with the PCB board in the casing and respectively with the main control chip of PCB board electricity connection, the temperature-sensing piece, smoke concentration inductor and alarm lamp, the main control chip sets up on the PCB board, the temperature-sensing piece sets up respectively on the wall of the back of the body of PCB board, the smoke concentration inductor sets up on the front end wall of PCB board, the alarm lamp inlays the both sides of locating the lower extreme wall of casing respectively, the lower tip of casing is protruding to be equipped with a storage tank, the metal mesh enclosure inlays to be located in the storage tank, and the smoke concentration inductor is located the metal mesh enclosure, the periphery wall of storage tank is equipped with a plurality of air inlets along the circum. The technical scheme of the utility model the assembly degree of difficulty can be simplified, and collection smoke sense and temperature are felt in an organic whole, and sensitivity, real-time and accuracy are high, and the practicality is strong.

Description

Temperature-sensing smoke detector with high sensitivity

Technical Field

The utility model relates to a detector technical field, in particular to temperature sensing smoke detector with high sensitivity.

Background

Generally, the process of fire development can be roughly divided into an initial stage, a development stage, and a damping-out stage. Smoke alarms have the function of early detection of fire signals and their general principle is to protect against fire by detecting the concentration of smoke. When the substance burns, smoke is often generated firstly, then visible light and invisible light are generated, a process always exists when the substance gradually becomes larger from the beginning of burning to the fire, and the smoke detector can capture the signal when the substance burns and convert the captured signal into an electric signal to be transmitted to a controller of the automatic fire alarm system. According to different structures, the smoke detector can be generally divided into an ion type smoke detector and a photoelectric type smoke detector.

However, most of the existing smoke detection alarms on the market have single functions, can only detect smoke, are complex to assemble and low in efficiency, and need to be further improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a temperature sensing smoke detector with high sensitivity, aim at solving current smog detection alarm function comparatively single, can only carry out smog and survey, and assemble loaded down with trivial details, the technical problem of inefficiency.

In order to achieve the above object, the present invention provides a temperature-sensitive smoke detector with high sensitivity, which comprises a housing, a bottom cover and a metal mesh enclosure, wherein the bottom cover is detachably disposed on the upper end of the housing, the housing is internally provided with a PCB board and a main control chip, a temperature sensor, a smoke concentration sensor and an alarm lamp electrically connected to the PCB board respectively, the main control chip is disposed on the PCB board, the temperature sensor is disposed on the back side wall of the PCB board respectively, the smoke concentration sensor is disposed on the front end wall of the PCB board, the alarm lamp is disposed on both sides of the lower end wall of the housing respectively, an inner top wall of the lower end of the housing is provided with a receiving groove in a protruding manner, the metal mesh enclosure is detachably disposed in the receiving groove, the upper end and the lower end of the metal mesh enclosure are abutted against the bottom of the receiving groove and the lower end wall of the PCB board respectively, and the smoke concentration inductor is positioned in the metal mesh enclosure, and the peripheral wall of the containing groove is concavely provided with a plurality of air inlets along the circumferential direction.

Further, the main control chip adopts an STM8L ultra-low power consumption 8-bit microprocessor chip.

Further, the periphery wall of the upper end of bottom is equipped with a plurality of pothooks along the circumferencial direction is protruding, the lower tip of the internal perisporium of casing along the circumferencial direction protruding be equipped with a plurality of with the buckle of pothook one-to-one is protruding, the buckle is protruding all to be the setting of L shape structure, just the lower tip of pothook is slidable card respectively to be located the bellied lower tip setting of buckle, the pothook respectively with buckle fixed connection can be dismantled in the buckle arch.

Further, the inner bottom wall of casing is equipped with a plurality of spacing posts along the circumferencial direction is protruding, the PCB board concave be equipped with a plurality of with spacing hole of spacing post one-to-one, the upper end of spacing post is do not detachable to inlay and is located set up in the spacing hole.

Furthermore, two mounting holes are symmetrically and concavely arranged on two sides of the upper end wall of the bottom cover.

Furthermore, the appearance of mounting hole all is the setting of oval structure.

Furthermore, a first wire inlet hole is concavely arranged in the middle of the upper end wall of the bottom cover.

Furthermore, a plurality of anti-skid convex strips are uniformly and convexly arranged on the upper end wall of the bottom cover along the circumferential direction.

Furthermore, two sides of the upper end wall of the PCB are respectively provided with a second wire inlet hole in a concave mode.

Adopt the technical scheme of the utility model, following beneficial effect has: the technical proposal of the utility model is that the upper end of the shell is covered by a detachable bottom cover, a PCB board and a main control chip, a temperature sensing piece, a smoke concentration sensor and an alarm lamp are arranged in the shell, the main control chip is arranged on the PCB board, the temperature sensing piece is respectively arranged on the back side wall of the PCB board, the smoke concentration sensor is arranged on the front end wall of the PCB board, the alarm lamp is respectively embedded on both sides of the lower end wall of the shell, the inner top wall of the lower end part of the shell is convexly provided with a containing groove, a detachable metal net cover is embedded in the containing groove, the upper end and the lower end of the metal net cover are respectively abutted against the bottom of the containing groove and the lower end wall of the PCB board, the smoke concentration sensor is arranged in the metal net cover, the peripheral wall of the containing groove is concavely provided with a plurality of air inlets along the circumferential direction, a screw-free, the assembly difficulty can be greatly simplified, the installation, debugging, disassembly and maintenance are more convenient and faster, and the efficiency is improved; and collect smoke and feel with the temperature and feel in an organic whole, the single detection alarm device of smoke and temperature sense on the fungible market has increased the functionality of smoke detector, can sound harsh alarm sound after detecting smog to light the red light that glimmers, remind the effect obvious, sensitivity, real-time and accuracy are high, and the practicality is strong.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 an overall structure of a temperature-sensitive smoke detector with high sensitivity according to an embodiment of the present invention;

fig. 2 is a schematic view of another view angle of the temperature-sensitive smoke detector with high sensitivity according to an embodiment of the present invention;

fig. 3 is an exploded schematic view of a temperature-sensitive smoke detector with high sensitivity according to an embodiment of the present invention;

fig. 4 is another exploded schematic view of a temperature-sensitive smoke detector with high sensitivity according to an embodiment of the present invention;

fig. 5 is a schematic exploded view of a temperature-sensitive smoke detector with high sensitivity according to an embodiment of the present invention.

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a temperature sensing smoke detector with high sensitivity.

As shown in fig. 1 to 5, in an embodiment of the present invention, the temperature-sensing smoke detector with high sensitivity includes a housing 101, a bottom cover 102 and a metal mesh enclosure 103, wherein the bottom cover 102 is detachably disposed at an upper end of the housing 101, a PCB 104, a main control chip (not shown) electrically connected to the PCB 104, a temperature sensing chip 105, a smoke concentration sensor 106 and an alarm lamp 107 are disposed in the housing 101, the main control chip is disposed on the PCB 104, the temperature sensing chip 105 is disposed on a back side wall of the PCB 104, the smoke concentration sensor 106 is disposed on a front end wall of the PCB 104, the alarm lamp 107 is respectively embedded at two sides of a lower end wall of the housing, an inner top wall of a lower end of the housing 101 is convexly provided with an accommodating groove 1011, the metal mesh enclosure 103 is detachably embedded in the accommodating groove, the upper end and the lower end of the metal mesh enclosure 103 are respectively abutted to the bottom of the containing groove 1011 and the lower end wall of the PCB 104, the smoke concentration sensor 106 is located in the metal mesh enclosure 103, and a plurality of air inlets 1012 are concavely arranged on the peripheral wall of the containing groove 1011 along the circumferential direction.

Specifically, the main control chip adopts STM8L 8 bit microprocessor chip of ultra-low power consumption, possesses powerful analysis, judgement ability, through adopt the operation procedure of inside solidification at the main control chip, can accomplish the compensation and the fire alarm of external environment parameter variation, the judgement of trouble automatically, the characteristic curve of storage environmental parameter variation, has greatly improved sensitivity, the real-time and the accuracy of entire system detection conflagration.

Specifically, the periphery wall of the upper end of bottom 102 is equipped with a plurality of pothooks 1021 along the circumferencial direction is protruding, the lower tip of the internal perisporium of casing 101 along the circumferencial direction protruding be equipped with a plurality ofly with the protruding 1013 of buckle of pothook 1021 one-to-one, the protruding 1013 of buckle all is the setting of L shape structure, just the lower tip of pothook 1021 slidable card respectively locates the lower tip setting of the protruding 1013 of buckle, pothook 1021 respectively with buckle fixed connection can be dismantled to the protruding 1013 of buckle for the assembly of bottom and casing is simple swift, need not beat the fix with screw, makes things convenient for later stage to dismantle the maintenance, just the lower tip wall of pothook 1021 all can respectively with the setting of the upper end wall slip butt of PCB board 104 plays the effect of fixed PCB board, avoids the PCB board to.

Specifically, the inner bottom wall of casing 101 is equipped with a plurality of spacing posts 1014 along the circumferencial direction is protruding, PCB board 104 be concave be equipped with a plurality ofly with spacing hole 1041 of spacing post 1014 one-to-one, the upper end of spacing post 1014 is do not detachable inlay and is located set up in the spacing hole 1041, play the effect of fixed PCB board, avoid the PCB board not hard up to appear, and the PCB board assembly of being convenient for.

Specifically, two mounting holes 1022 are symmetrically recessed on two sides of the upper end wall of the bottom cover 102, so as to facilitate the mounting and fixing of the bottom cover.

Specifically, the mounting holes 1022 are all arranged in an oval structure, so that the bottom cover can be conveniently fixed by mounting screws.

Specifically, a first wire inlet 1023 is concavely formed in the middle of the upper end wall of the bottom cover 102.

Specifically, the upper end wall of the bottom cover 102 is uniformly provided with a plurality of anti-slip protruding strips 1024 in a protruding manner along the circumferential direction. The bottom cover is convenient to rotate, and the assembly and the disassembly are convenient.

Specifically, two sides of the upper end wall of the PCB 104 are respectively recessed with a second wire inlet 1042 for leading out a cable.

Specifically, the utility model is arranged at the upper end of the shell by covering the bottom cover with a detachable cover, a PCB board and a main control chip, a temperature sensing piece, a smoke concentration sensor and an alarm lamp which are respectively and electrically connected with the PCB board are arranged in the shell, the main control chip is arranged on the PCB board, the temperature sensing piece is respectively arranged on the back side wall of the PCB board, the smoke concentration sensor is arranged on the front end wall of the PCB board, the alarm lamp is respectively embedded at the two sides of the lower end wall of the shell, an accommodating groove is convexly arranged on the inner top wall of the lower end part of the shell, a metal mesh cover is detachably embedded in the accommodating groove, the upper end part and the lower end part of the metal mesh cover are respectively abutted against the bottom of the accommodating groove and the lower end wall of the PCB board, the smoke concentration sensor is arranged in the metal mesh cover, a plurality of air inlets are concavely arranged on the, the assembly difficulty can be greatly simplified, the installation, debugging, disassembly and maintenance are more convenient and faster, and the efficiency is improved; and collect smoke and feel with the temperature and feel in an organic whole, the single detection alarm device of smoke and temperature sense on the fungible market has increased the functionality of smoke detector, can sound harsh alarm sound after detecting smog to light the red light that glimmers, remind the effect obvious, sensitivity, real-time and accuracy are high, and the practicality is strong.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A temperature-sensing smoke detector with high sensitivity is characterized by comprising a shell, a bottom cover and a metal mesh enclosure, wherein the detachable cover of the bottom cover is arranged at the upper end of the shell, a PCB (printed Circuit Board) and a main control chip, a temperature sensing piece, a smoke concentration sensor and an alarm lamp which are respectively and electrically connected with the PCB are arranged in the shell, the main control chip is arranged on the PCB, the temperature sensing piece is respectively arranged on the back side wall of the PCB, the smoke concentration sensor is arranged on the front end wall of the PCB, the alarm lamp is respectively embedded at two sides of the lower end wall of the shell, an accommodating groove is convexly arranged on the inner top wall of the lower end part of the shell, the metal mesh enclosure is detachably embedded in the accommodating groove, the upper end part and the lower end part of the metal mesh enclosure are respectively abutted against the bottom of the accommodating groove and the lower end wall of the PCB, and the smoke concentration inductor is positioned in the metal mesh enclosure, and the peripheral wall of the containing groove is concavely provided with a plurality of air inlets along the circumferential direction.

2. The temperature-sensitive smoke detector with high sensitivity of claim 1, wherein the main control chip adopts STM8L ultra-low power consumption 8-bit microprocessor chip.

3. The temperature-sensitive smoke detector according to claim 1, wherein the outer peripheral wall of the upper end of the bottom cover is provided with a plurality of hooks protruding in a circumferential direction, the lower end of the inner peripheral wall of the housing is provided with a plurality of fastening protrusions corresponding to the hooks one by one protruding in the circumferential direction, the fastening protrusions are all arranged in an L-shaped structure, the lower ends of the hooks are slidably fastened to the lower ends of the fastening protrusions respectively, the hooks are detachably and fixedly connected to the fastening protrusions respectively, and the lower end walls of the hooks are slidably abutted to the upper end walls of the PCB respectively.

4. The temperature-sensitive smoke detector according to claim 1, wherein the inner bottom wall of the housing has a plurality of positioning posts protruding in a circumferential direction, the PCB has a plurality of positioning holes corresponding to the positioning posts one by one, and the upper ends of the positioning posts are detachably inserted into the positioning holes.

5. The temperature-sensitive smoke detector according to claim 1, wherein the two mounting holes are symmetrically recessed on both sides of the upper end wall of the bottom cover.

6. The temperature-sensitive smoke detector according to claim 5, wherein said mounting holes are formed in an elliptical configuration.

7. The temperature-sensitive smoke detector according to claim 1, wherein the upper end wall of said bottom cover is recessed with a first wire hole in the middle.

8. The temperature-sensitive smoke detector according to claim 1, wherein the upper end wall of the bottom cover is provided with a plurality of anti-slip ribs uniformly protruding in a circumferential direction.

9. The temperature-sensitive smoke detector with high sensitivity as claimed in claim 1, wherein a second wire hole is respectively recessed at both sides of the upper end wall of the PCB.