CN112330913B

CN112330913B - Smoke alarm

Info

Publication number: CN112330913B
Application number: CN201910712896.9A
Authority: CN
Inventors: 戴立涛
Original assignee: Hangzhou Haikang Fire Technology Co ltd
Current assignee: Hangzhou Haikang Fire Technology Co ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2022-07-05
Anticipated expiration: 2039-08-02
Also published as: CN112330913A

Abstract

The embodiment of the invention provides a smoke alarm, which comprises: the smoke monitoring device comprises a rear shell assembly, a middle shell assembly, a front cover assembly, a smoke sensor assembly and a monitoring assembly; the backshell subassembly includes: a rear housing; the middle shell component comprises: a middle shell cover and a middle shell; the front cover assembly includes: a front cover; the monitoring assembly includes: a camera; the smoke sensor component is arranged between the rear shell and the middle shell cover; the space between the middle shell cover and the middle shell forms a smoke sensing area; the middle shell cover is provided with a smoke sensing through hole, so that the smoke sensing area is communicated with a first cavity formed by the rear shell and the middle shell cover; the monitoring component is arranged in a second cavity formed between the middle shell and the front cover; be provided with camera installation through-hole on the protecgulum for the camera of control subassembly passes camera lens installation through-hole and shoots. Because this smoke alarm has control assembly and smoke transducer subassembly, is being connected the back with control assembly and smoke transducer subassembly electricity and circular telegram and open, makes this smoke alarm when smoke alarm, can in time learn the conflagration particular case.

Description

Smoke alarm

Technical Field

The invention relates to the technical field of fire fighting, in particular to a smoke alarm.

Background

With the rapid development of economy, many high-rise residences and office buildings with intensive personnel appear, and fire-fighting systems are indispensable for ensuring the safety of the personnel in the high-rise residences and office buildings. In a fire protection system, a smoke alarm is usually included, and the position of a fire can be quickly determined through the smoke alarm, so that the fire can be quickly extinguished, and the fire can be prevented from being expanded.

In general, when a fire occurs, smoke enters the smoke alarm, and is sensed by a smoke sensor arranged in the smoke alarm, and when the concentration of the smoke reaches the alarm concentration of the smoke sensor, the smoke alarm generates an alarm signal to alarm.

However, the smoke alarm in the prior art only alarms by sensing the smoke concentration through the smoke sensor. When the smoke alarm gives an alarm, the fire disaster at the position of the smoke alarm can be only explained, but the specific situation of the fire disaster can not be known, for example, the position of the fire point can not be known, and the smoke alarm is not beneficial to fire rescue.

Disclosure of Invention

The embodiment of the invention aims to provide a smoke alarm, so that the specific situation of a fire can be known in time while the smoke alarm is given. The specific technical scheme is as follows:

an embodiment of the present invention provides a smoke alarm, including: the smoke monitoring device comprises a rear shell assembly, a middle shell assembly, a front cover assembly, a smoke sensor assembly and a monitoring assembly;

the backshell assembly includes at least: a rear housing; the middle shell component comprises: a middle shell cover and a middle shell; the front cover assembly includes at least: a front cover; the monitoring assembly includes: a camera;

the smoke sensor component is arranged between the rear shell and the middle shell cover;

the space between the middle shell cover and the middle shell forms a smoke sensing area;

the middle shell cover is provided with a smoke sensing through hole, so that the smoke sensing area is communicated with a first cavity formed by the rear shell and the middle shell cover;

the monitoring component is arranged in a second cavity formed between the middle shell and the front cover;

be provided with camera installation through-hole on the protecgulum for the camera of control subassembly passes camera lens installation through-hole and shoots.

Optionally, the smoke alarm further comprises: a flow guide ring; the outer ring of the guide ring is uniformly provided with a plurality of guide through holes along the circumference;

the guide ring is arranged in a smoke sensing area between the middle shell cover and the middle shell, the upper end of the guide ring is connected with the middle shell cover, and the lower end of the guide ring is connected with the middle shell.

Optionally, the inner ring of the flow guide ring is uniformly provided with a plurality of first flow guide ribs along the circumference, the first flow guide ribs are arranged along the radial direction of the flow guide ring, and the first flow guide ribs are arranged between two adjacent flow guide through holes.

Optionally, the outer ring of the flow guide ring is circumferentially provided with a flow guide groove, and the cross section of the flow guide groove parallel to the axis of the flow guide groove is in a V shape.

Optionally, a plurality of second flow guide ribs are uniformly arranged on one side, close to the middle shell cover, of the middle shell in the circumferential direction; the second flow guide ribs are arranged along the radial direction of the middle shell;

the radial distance between the outer ring of the guide ring and the inner side of the first guide rib is smaller than the radial distance between the outer ring of the middle shell and the outer side of the second guide rib, so that when the guide ring is installed in a smoke sensing area between the middle shell cover and the middle shell, the second guide rib penetrates through the inner ring of the guide ring.

Optionally, a plurality of guide rib mounting through holes are uniformly arranged in the circumferential direction of the middle shell cover, and the guide rib mounting through holes are arranged along the radial direction of the middle shell cover;

the shape of the flow guide rib installation through hole is matched with that of the second flow guide rib; the number of the flow guide rib mounting through holes is the same as that of the second flow guide ribs;

the second flow guide rib penetrates through the inner ring of the flow guide ring and is arranged in the flow guide rib installation through hole.

Optionally, the smoke sensor assembly comprises: a first circuit board and a smoke sensor; the monitoring assembly further comprises: a second circuit board;

the first circuit board is arranged between the rear shell and the middle shell cover; the smoke sensor passes through the smoke sensing through hole and is arranged on the inner ring of the guide ring;

the second circuit board is installed in the second cavity.

Optionally, a cable through hole is formed in the rear shell;

the external cable is connected to the first circuit board through the cable through hole; the external cable comprises a first power supply cable and a first signal transmission cable;

the first circuit board and the second circuit board are electrically connected by adopting a square flexible circuit board cable; the square flexible circuit board cable comprises a second power supply cable and a second signal transmission cable;

a square through hole perpendicular to the end face of the middle shell is formed in any one of the second flow guide ribs, and the shape of the square through hole is matched with that of a square flexible circuit board cable;

the middle shell is provided with a second flow guide rib with a square through hole, and the square through hole is matched with the square through hole in shape.

Optionally, the smoke alarm further comprises: and the temperature sensor is electrically connected with the first circuit board.

Optionally, the smoke alarm further comprises: a heat sink;

the cooling fin is arranged between the monitoring component and the middle shell;

the heat sink is provided with a notch and/or a through hole which is matched with the shape of the component welded on the second circuit board;

the mesochite is provided with a heat dissipation through hole.

Optionally, a reset button and a secure digital card slot are installed on two sides of the second circuit board; the smoke alarm further comprises: a gap plug;

the outer side of one side of the middle shell, which is close to the monitoring component, is provided with a first notch, and the shape of the first notch is matched with that of the reset button;

the outer side of one side of the front cover close to the monitoring component is provided with a second notch, and the shape of the second notch is matched with that of the safe digital card slot;

the middle shell and the front cover are aligned and installed by taking the first gap and the second gap as references; the gap plug is arranged at the position of the gap formed by the first gap and the second gap.

Optionally, the smoke sensor assembly further comprises: installing an induction component;

the backshell assembly still includes: installing an induction key; the rear shell is provided with an installation induction key installation through hole, and the shape of the installation induction key installation through hole is matched with the shape of the installation induction key;

the installation induction key penetrates through the installation induction key installation through hole to be installed on the rear shell.

Optionally, the rear shell assembly further comprises: installing a base; the mounting base is provided with a first mounting buckle;

a second mounting buckle is arranged on one side of the rear shell, which is far away from the smoke sensor assembly, and the rear shell is clamped with the mounting base through the first mounting buckle and the second mounting buckle;

the installation base is provided with an installation through hole matched with the installation induction key in shape, and the installation induction key penetrates through the installation through hole, so that the installation induction component is in a conducting state when the installation base is installed to the installation surface.

Optionally, a battery mounting groove is formed in one side, close to the rear shell, of the middle shell cover, and the battery is mounted in the battery mounting groove in the first cavity;

the battery is electrically connected to the smoke sensor assembly to provide electrical power to the smoke sensor assembly.

Optionally, the smoke alarm further comprises: light filling lamp subassembly, light filling lamp subassembly includes: a light supplement lamp; a light supplement lamp mounting through hole is formed in the front cover;

the light filling lamp assembly is installed between the monitoring assembly and the front cover, so that the light filling lamp penetrates through the light filling lamp installation through hole to fill light.

Optionally, the monitoring component further includes: a second circuit board; the light filling lamp subassembly still includes: the light supplement lamp mounting frame and the light supplement lamp circuit board;

the light supplement lamp is arranged on the light supplement lamp mounting frame, and the light supplement lamp mounting frame is arranged on the light supplement lamp circuit board;

the light supplement lamp circuit board is electrically connected with the second circuit board.

Optionally, the smoke alarm further comprises: a buzzer;

a gap is arranged on the light supplement lamp circuit board;

a buzzer mounting groove is formed in one side, close to the middle shell, of the front cover, a through hole is formed in the bottom of the buzzer mounting groove, and the through hole is used for enabling sound generated by the buzzer to penetrate through the front cover;

the buzzer passes through the notch and is arranged in the buzzer mounting groove;

the buzzer is electrically connected with the second circuit board.

Optionally, the front cover assembly further comprises: the decoration ring is provided with through holes which are uniformly distributed; the decorative cover is arranged on one side of the front cover far away from the monitoring component;

the width of the decoration ring is smaller than the radial distance between the camera mounting through hole and the light supplement lamp mounting through hole.

Optionally, the smoke alarm further comprises: the light supplementing lamp shade is arranged on one side, far away from the monitoring assembly, of the front cover;

the light supplementing lamp shade is provided with a decoration ring through hole, and the diameter of the decoration ring through hole is larger than or equal to the outer diameter of the decoration ring;

the light supplementing lamp cover is also provided with a through hole for pressing the alarm/silencing key and a through hole for enabling the light of the work indicating lamp to penetrate through.

Optionally, the smoke alarm further comprises: a work indicator light;

one side of the front cover, which is close to the middle shell, is provided with a light guide column, a through hole is arranged on the light guide column, and a through hole with the same diameter as that of the through hole on the light guide column is arranged at the position of the front cover, which is provided with the light guide column;

the work indicator light is arranged in the through hole of the light guide column and is electrically connected with the second circuit board of the monitoring assembly.

Optionally, the front cover assembly further comprises: alarm/mute button;

the front cover is also provided with an alarm/silencing key through hole; the monitoring assembly further comprises: an alarm/noise reduction component; the alarm/silencing key is arranged on the front cover through the alarm/silencing key through hole.

The embodiment of the invention provides a smoke alarm, which comprises: the smoke monitoring device comprises a rear shell assembly, a middle shell assembly, a front cover assembly, a smoke sensor assembly and a monitoring assembly; the backshell assembly includes at least: a rear housing; the mesochite assembly includes: a middle shell cover and a middle shell; the front cover assembly includes at least: a front cover; the monitoring assembly includes: a camera; the smoke sensing area is formed in the space between the middle shell cover and the middle shell by mounting the middle shell cover and the middle shell, and when the smoke sensor assembly is mounted between the rear shell and the middle shell cover, the smoke sensing area is communicated with a first cavity formed by the rear shell and the middle shell cover by arranging the smoke sensing through hole on the middle shell cover; through with the second cavity that the control assembly installation formed between mesochite and protecgulum to set up camera installation through-hole on the protecgulum, can make the camera of control assembly pass camera lens installation through-hole and shoot.

Because the smoke alarm is provided with the monitoring component and the smoke sensor component, after the monitoring component and the smoke sensor component are electrically connected and powered on, the specific fire condition can be known in time while the smoke alarm gives an alarm. Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.

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 drawings without creative efforts.

Figure 1 is a schematic structural view of a first embodiment of a smoke alarm according to an embodiment of the present invention;

fig. 2a is a schematic structural view of a smoke sensing area formed by a middle shell cover and a middle shell of the smoke alarm shown in fig. 1;

figure 2b is a schematic view of the smoke alarm of figure 1 when installed;

figure 3a is a schematic structural view of a second embodiment of a smoke alarm according to an embodiment of the present invention;

figure 3b is a schematic view of the deflector ring in the smoke alarm of figure 3 a;

figure 3c is a schematic view of a first arrangement of the centre housing of the smoke alarm of figure 3 a;

figure 3d is a schematic view of a first configuration of the housing cover in the smoke alarm of figure 3 a;

figure 3e is a schematic view of the mounting of the centre housing, deflector ring and centre housing cover in the smoke alarm of figure 3 a;

figure 4a is a schematic structural view of a third embodiment of a smoke alarm according to an embodiment of the present invention;

figure 4b is a third schematic view of the middle housing of the smoke alarm of figure 4 a;

figure 5 is a schematic structural view of a fourth embodiment of a smoke alarm according to an embodiment of the present invention;

figure 6a is a schematic structural view of a fifth implementation of a smoke alarm according to an embodiment of the present invention;

figure 6b is a schematic structural view of a rear housing assembly in the smoke alarm shown in figure 6 a;

figure 6c is a schematic view of a second configuration of the housing cover in the smoke alarm of figure 6 a;

figure 7a is a schematic structural view of a sixth implementation of a smoke alarm according to an embodiment of the present invention;

figure 7b is a schematic view of the front cover of the smoke alarm of figure 7 a;

fig. 7c is a schematic structural view of a fill light assembly in the smoke alarm shown in fig. 7 a.

Detailed Description

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 order to solve the problems in the prior art, the embodiment of the invention provides a smoke alarm, so that the specific situation of a fire can be known in time while smoke alarm is given, and fire rescue is facilitated.

In the following, a smoke alarm according to an embodiment of the present invention is described, as shown in fig. 1, which is a schematic structural diagram of a first implementation manner of the smoke alarm according to the embodiment of the present invention, and the smoke alarm may include: a rear housing assembly 110, a middle housing assembly 120, a front cover assembly 130, a smoke sensor assembly 140, and a monitoring assembly 150;

wherein, the rear shell assembly 110 at least comprises: a rear case 111; the middle case assembly 120 includes: a middle case cover 121 and a middle case 122; the front cover assembly 130 includes at least: a front cover 131; the monitoring assembly 150 includes: a camera 151;

as shown in fig. 1, the smoke sensor assembly 140 is installed between the rear case 111 and the middle case cover 121;

as shown in fig. 2a, the space between the middle case cover 121 and the middle case 122 forms a smoke zone.

In some examples, as shown in fig. 2a, a middle case mounting hole 1211 is formed on the middle case cover 121, a screw mounting post 1221 is formed on the middle case 122, and when the middle case cover 121 and the middle case 122 are mounted, a screw can be mounted on the screw mounting post 1221 through the middle case mounting hole 1211, so that a smoke sensing area can be formed in a space between the middle case cover 121 and the middle case 122.

As shown in fig. 1, in order to enable the smoke sensor assembly 140 to sense smoke, a smoke sensing through hole 1212 is provided on the middle shell cover 121, so that the smoke sensing area is communicated with a first cavity formed by the rear shell 111 and the middle shell cover 121;

as shown in fig. 1, the monitoring assembly 150 is installed in a second cavity formed between the middle case 122 and the front cover 131;

in some examples, to enable the monitoring assembly 150 to photograph, a camera mounting through hole 1311 is provided on the front cover 131, so that the camera 151 of the monitoring assembly 150 photographs through the lens mounting through hole 1311.

The smoke alarm resulting from installation is shown in fig. 2b, the rear housing assembly 110 is mounted together with the middle housing cover 121, and the smoke sensor assembly 140 is mounted inside a first cavity formed between the rear housing 111 of the rear housing assembly 110 and the middle housing cover 121. It will be appreciated that the smoke sensor assembly 140 is not shown in figure 2b, as the smoke sensor assembly 140 is located inside the smoke alarm.

The middle case cover 121 and the middle case 122 are mounted together by screw mounting posts 1221 such that a space between the middle case cover 121 and the middle case 122 forms a smoke zone. The middle case 122 is mounted together with the front cover 131 of the front cover assembly 130, and the monitoring assembly 150 is mounted in a second cavity formed between the middle case 122 and the front cover 131. And, the camera 151 of the monitoring assembly 150 is mounted through the lens mounting through hole 1311 of the front cover 131. It should be understood that other elements of the monitoring assembly 150 are not shown in fig. 2b, since the camera 151 passes through the lens mounting hole 1311 in the monitoring assembly 150, and other elements of the monitoring assembly 150 are mounted in the second cavity.

The embodiment of the invention provides a smoke alarm, which comprises: the smoke sensor comprises a rear shell assembly, a middle shell assembly, a front cover assembly, a smoke sensor assembly and a monitoring assembly; the backshell assembly includes at least: a rear housing; the middle shell component comprises: a middle shell cover and a middle shell; the front cover assembly includes at least: a front cover; the monitoring assembly includes: a camera; the smoke sensing area is formed in the space between the middle shell cover and the middle shell by mounting the middle shell cover and the middle shell, and when the smoke sensor assembly is mounted between the rear shell and the middle shell cover, the smoke sensing area is communicated with a first cavity formed by the rear shell and the middle shell cover by arranging the smoke sensing through hole on the middle shell cover; through with the second cavity that the control assembly installation formed between mesochite and protecgulum to set up camera installation through-hole on the protecgulum, can make the camera of control assembly pass camera lens installation through-hole and shoot.

Because this smoke alarm has monitoring subassembly and smoke transducer subassembly, is being connected monitoring subassembly and smoke transducer subassembly electricity and the circular telegram after opening, can make this smoke alarm when smoke alarm, can in time learn conflagration particular case.

On the basis of the smoke alarm shown in fig. 1, the embodiment of the present invention further provides a possible implementation manner, as shown in fig. 3a, which is a schematic structural diagram of a second implementation manner of the smoke alarm according to the embodiment of the present invention, and the smoke alarm may further include: a deflector ring 160;

as shown in fig. 3a, the baffle 160 is installed in the smoke sensing area between the middle case cover 121 and the middle case 122, and the upper end of the baffle 160 is connected to the middle case cover 121 and the lower end is connected to the middle case 122.

In some examples, screws may be used to secure the baffle 160 between the center housing cover 121 and the center housing 122 such that the center housing cover 121 and the center housing 122 clamp the baffle 160.

In some examples, as shown in fig. 3b, the outer ring of the deflector ring 160 is uniformly provided with a plurality of deflector through holes 161 along the circumference. The smoke alarm provided by the embodiment of the invention has more attractive appearance by arranging the flow guide ring, and smoke enters the first cavity through the smoke sensing through hole 1212 arranged on the middle shell cover 121 and is sensed by the smoke sensor assembly after entering the flow guide ring 160 by arranging the flow guide through hole 161 on the outer ring of the flow guide ring.

In some examples, as shown in fig. 3b, a plurality of first guide ribs 162 are uniformly arranged on the inner ring of the guide ring 160 along the circumference, the first guide ribs 162 are arranged along the radial direction of the guide ring 160, and the first guide ribs 162 are arranged at positions between two adjacent guide through holes 161.

In some examples, as shown in fig. 3b, the outer ring of the deflector ring 160 is circumferentially provided with a guide groove 163, and a cross-sectional shape of the guide groove 163 parallel to the axis of the deflector ring 160 is V-shaped.

In still other examples, as shown in fig. 3c, a plurality of second air-guide ribs 1222 are uniformly arranged on the side of the middle shell 122 close to the middle shell cover 121 in the circumferential direction; for example, the number of the second air guide ribs 1222 may be 4, 6, or 8, and the second air guide ribs 1222 are disposed along the radial direction of the middle shell 122;

in still other examples, the radial distance between the outer ring of the baffle 160 and the inside of the first air deflector rib 162 shown in fig. 3b is less than the radial distance between the outer ring of the mid-shell 122 and the outside of the second air deflector rib 1222 shown in fig. 3 c. In this way, when the deflector ring 160 is installed in the smoke sensing area between the middle housing cover 121 and the middle housing 122, the second deflector rib 1222 can penetrate through the inner ring of the deflector ring 160.

By providing the second diversion rib 1222, the second diversion rib 1222 divides the smoke sensing area of the inner ring of the diversion ring 160 into a plurality of smoke sensing subareas. Therefore, the smoke in all horizontal directions can be guided to flow to the center of the flow guide ring, the smoke sensor assembly 140 can be uniformly wrapped in the smoke in all directions, and the smoke sensing consistency of the smoke sensor assembly 140 is improved.

As shown in fig. 3c, 4 screw mounting columns 1221 and 8 second guiding ribs 1222 are uniformly disposed on the middle shell 122. The 4 screw mounting columns 1221 may be combined with 4 of the second guide ribs 1222.

In still other examples, a plurality of limit blocks 1223 are uniformly arranged on the side of the middle shell 122 close to the middle shell cover 121 in the circumferential direction. Correspondingly, one side circumference that the water conservancy diversion circle 160 is close to mesochite 122 evenly is provided with a plurality of spacing mouths that suit with this stopper 1223 shape, and this stopper 1223 can imbed in this spacing mouth to can restrict the removal and/or the rotation of water conservancy diversion circle 160.

In still other examples, as shown in fig. 3d, the middle shell cover 121 is uniformly provided with a plurality of air guide rib mounting through holes 1213 in a circumferential direction, the air guide rib mounting through holes 1213 being arranged in a radial direction of the middle shell cover 121;

the shape of the diversion rib installation through hole 1213 is adapted to the shape of the second diversion rib 1222; the number of the diversion rib installation through holes 1213 is the same as that of the second diversion ribs 1222;

the second air guide rib 1222 passes through the inner ring of the air guide ring 160 and is installed in the air guide rib installation through hole 1213. As shown in fig. 3e, for the installation of the middle shell cover 121, the baffle ring 160 and the middle shell 122, screws may be used to pass through the screw mounting holes 1214 formed on the middle shell cover 121 and be installed on the screw mounting posts 1221 formed on the middle shell 122, so that the middle shell 122 and the middle shell cover 121 may be installed together. At this time, the second air guide rib 1222 may pass through the inner ring of the air guide ring 160 and be installed in the air guide rib installation through hole 1213. Thus, the overall strength of the middle case cover 121 and the middle case 122 after mounting can be increased.

On the basis of the smoke alarm shown in fig. 3a, the embodiment of the present invention further provides a possible implementation manner, as shown in fig. 4a, which is a schematic structural diagram of a third implementation manner of the smoke alarm according to the embodiment of the present invention, and the smoke sensor assembly 140 in the smoke alarm may include: a first circuit board 141 and a smoke sensor 142; the monitoring assembly 150 in the smoke alarm may further comprise: a second circuit board 152;

as shown in fig. 4a, the first circuit board 141 is mounted between the rear case 111 and the middle case cover 121; the smoke sensor 142 can be arranged in the inner ring of the deflector ring 160 through the smoke sensing through hole 1212;

as shown in fig. 4a, the second circuit board 152 may be mounted in the second cavity, i.e., between the middle case 122 and the front cover assembly 130.

In still other examples, as shown in fig. 4a, the rear case 111 is provided with a cable through hole 1111; in this way, the smoke alarm may be connected to an external cable so that the smoke sensor assembly 140 and the monitoring assembly 150 of the smoke alarm are powered and transmit signals via the external cable.

For example, an external cable may be connected to the first circuit board 141 through the cable through-hole 1111; the external cable comprises a first power supply cable and a first signal transmission cable;

the first circuit board 141 and the second circuit board 152 are electrically connected by a square Flexible circuit board cable, which may be a Flexible circuit board (FPC) cable; the square flexible circuit board cable comprises a second power supply cable and a second signal transmission cable. In this way, the image or video signal collected by the monitoring component 150 can be transmitted to the external background device through the square flexible circuit board cable.

In some examples, in order to avoid the influence of the square flexible circuit board cable on the smoke entering the inner ring of the deflector ring, as shown in fig. 4b, a square through hole 12223 perpendicular to the end surface of the middle shell is provided on any one of the second deflector ribs 1222, and the shape of the square through hole 12223 is adapted to the shape of the square flexible circuit board cable;

the middle shell 122 is provided with a second flow guiding rib with a square through hole 12223, and a square through hole corresponding to the shape of the square through hole 12223 is arranged.

In some further examples, the smoke alarm described above may further comprise, in order to be able to obtain the temperature of the monitoring point at which the smoke alarm is installed: a temperature sensor, which may be electrically connected with the first circuit board 141.

In still other examples, the temperature sensor may be suspended within the smoke alarm. Thus, there is no location for the temperature sensor to be mounted, it being understood that a temperature sensor mounting slot may be provided in the smoke alarm, and that the temperature sensor may be mounted in the temperature sensor mounting slot, as is also possible.

On the basis of the smoke alarm shown in fig. 4a, the embodiment of the present invention further provides a possible implementation manner, as shown in fig. 5, which is a schematic structural diagram of a fourth implementation manner of the smoke alarm according to the embodiment of the present invention, and the smoke alarm may further include: a heat sink 170;

as shown in fig. 5, a heat sink 170 is mounted between the monitoring component 150 and the middle case 122;

in order to reduce the overall volume of the smoke alarm after installation, the heat sink 170 is provided with notches and/or through holes which are adapted to the shapes of the components welded on the second circuit board 152; thus, the heat sink 170 can be attached to the second circuit board 152.

In still other examples, a heat dissipating through hole may be formed in the middle shell 122 to facilitate dissipation of heat generated by the monitoring component to the outside of the smoke alarm through the heat dissipating through hole and the deflector.

In some examples, as shown in fig. 5, a reset button 1521 and a secure digital card slot 1522 are mounted on both sides of the second circuit board 152; thus, the smoke alarm may be inserted into a secure digital card to store images or video taken by the monitoring component 150 within the secure digital card.

In order to enable the insertion of a secure digital card and the use of the reset button 1521 on the exterior of the smoke alarm, as shown in fig. 5, the outer side of the middle shell 122 close to the monitoring assembly 150 is provided with a first notch 1224, and the shape of the first notch 1224 is adapted to the shape of the reset button 1521;

a second notch 1311 is formed in the outer side of one side of the front cover 131 close to the monitoring component 150, and the shape of the second notch 1311 is adapted to the shape of the secure digital card slot 1522;

in further examples, to enhance the aesthetic appearance of the overall appearance of the smoke alarm, the smoke alarm may further comprise: a notch plug 180; when the middle case 122 and the front cover 131 are installed, the middle case 122 and the front cover 131 may be installed in alignment with reference to the first gap 1224 and the second gap 1311; in this way, the notch plug 180 can be installed at the notch position composed of the first notch 1224 and the second notch 1311.

On the basis of the smoke alarm shown in fig. 1, the embodiment of the present invention further provides a possible implementation manner, as shown in fig. 6a, which is a schematic structural diagram of a fifth implementation manner of the smoke alarm according to the embodiment of the present invention, and referring to fig. 6a, the smoke sensor assembly 140 further includes: mounting the sensing component 143;

in some examples, in order to enable the installation sensing component 143 to be in a conducting state after the smoke alarm installed on the rear shell 111 is installed on the installation surface, as shown in fig. 6b, the rear shell assembly 110 may further include: installing an induction key 112; the rear case 111 may be provided with an installation sensing key installation through hole 1112, and the shape of the installation sensing key installation through hole 1112 is adapted to the shape of the installation sensing key 112. Thus, the installation sensing key 112 can be installed on the rear case through the installation sensing key installation through hole 1112.

In still other examples, to facilitate installation of the smoke alarm, as shown in fig. 6b, the rear housing assembly 110 may further include: a mounting base 113; the mounting base 113 is provided with a first mounting buckle 1131; a second mounting buckle 1113 is provided on the side of the rear housing 111 remote from the smoke sensor assembly.

When the smoke alarm is installed, the installation base 113 can be installed on the installation surface firstly, and then the first installation buckle 1131 and the second installation buckle 1113 are clamped, so that the rear shell 111 is clamped with the installation base 113, and the installation of the smoke alarm can be completed.

In still other examples, as shown in fig. 6b, the mounting base 113 is provided with a mounting through hole 1132 corresponding to the shape of the mounting sensing button, and the mounting sensing button passes through the mounting through hole 1112, so that the mounting sensing component 143 is in a conducting state when the mounting base 113 is mounted on the mounting surface.

In some examples, in order to facilitate the installation of the mounting base 113 on the rear shell 111, a plurality of mounting through holes 1132 may be provided on the mounting base 113, and the plurality of mounting through holes 1132 may be uniformly arranged along the circumferential direction, which is also possible.

In some examples, the smoke alarm may be powered using an external power source in a safe environment, i.e. by a cable electrically connected to the smoke sensor assembly 140, which may be interrupted when a fire occurs at the monitoring point where the smoke alarm is installed, and a battery may be installed in the smoke alarm in order to enable the smoke alarm to continue to operate, as shown in fig. 6c, and a battery mounting groove 1215 is provided on a side of the middle housing cover 121 near the rear housing 111 in order to install the battery, so that the battery may be installed in the battery mounting groove 1215 in the first cavity; the battery can be electrically connected to the smoke sensor assembly 140 so that power can be supplied to the smoke sensor assembly 140 to ensure continued operation of the smoke sensor assembly 140.

On the basis of the smoke alarm shown in fig. 1, in order to improve the imaging quality of the picture or video shot by the monitoring component 150, a possible implementation manner is further provided in the embodiment of the present invention, as shown in fig. 7a, which is a schematic structural diagram of a sixth implementation manner of the smoke alarm in the embodiment of the present invention, and the smoke alarm may further include: light filling lamp subassembly 190, light filling lamp subassembly 190 includes: a fill light 191; through setting up light filling lamp 191, can provide the light filling for this monitoring subassembly 150 when this monitoring subassembly 150 shoots. In some examples, the fill light 191 is an infrared fill light.

In order to allow the light of the supplementary light 191 to be irradiated to the outside of the smoke alarm, as shown in fig. 7b, a supplementary light mounting through hole 1312 may be provided on the front cover 131. This light filling lamp subassembly 190 can be installed between monitoring subassembly 150 and protecgulum 131 to can make light filling lamp 191 pass light filling lamp installation through-hole 1312 and carry out the light filling.

In some examples, in order to provide power to the fill light 191 and install the fill light 191, the monitoring assembly 150 may further include: a second circuit board 152; the fill light assembly 190 may further include: a fill light mounting bracket 192 and a fill light circuit board 193;

as shown in fig. 7c, the fill light 191 may be mounted on a fill light mounting bracket 192, and the fill light mounting bracket 192 may be mounted on a fill light circuit board 193; the fill light circuit board 193 is electrically connected to the second circuit board 152.

In some examples, in order to enable timely notification of people at an alarm point where the smoke alarm is installed in the event of a fire, the smoke alarm may further include: a buzzer;

as shown in fig. 7b, a buzzer mounting groove 1313 is formed at one side of the front cover 131 close to the middle case, and a through hole for allowing sound generated by the buzzer to pass through the front cover 131 is formed at the bottom of the buzzer mounting groove 1313;

in still other examples, in order to avoid the influence of the fill light circuit board 193 on the buzzer installation, as shown in fig. 7c, a notch 1931 is formed on the fill light circuit board 193; the buzzer can be installed in the buzzer installation groove 1313 through the notch 1931; by electrically connecting the buzzer to the second circuit board 152, an external cable may be used to supply power to the buzzer through the second circuit board 152.

In some examples, to further enhance the aesthetic appearance of the smoke alarm, as shown in fig. 7a, the front cover assembly 130 may further comprise: a decorative ring 132, wherein the decorative cover 132 is mounted on the side of the front cover 131 away from the monitoring assembly 150; to avoid the effect of the decoration ring 132 on the camera and the fill light, the width of the decoration ring 132 may be smaller than the radial distance between the camera mounting through hole 1311 and the fill light mounting through hole 1312.

In still other examples, the decoration ring 132 may be provided with through holes uniformly distributed in order to allow the sound generated from the buzzer to pass through the decoration ring.

In some examples, to enable a person to know in time whether the smoke alarm is working, as shown in fig. 7a, the smoke alarm may further comprise: a work light 220.

In still other examples, in order to install the operation indicator lamp 220, as shown in fig. 7b, a light guide pillar 134 is disposed on one side of the front cover 131 close to the middle shell 122, a through hole is disposed on the light guide pillar 134, and a through hole having the same diameter as the through hole on the light guide pillar 134 is disposed at a position where the light guide pillar is disposed on the front cover 131; like this, can work pilot lamp 220 install in the through-hole of leaded light post 134, through being connected the second circuit board 152 electricity with work pilot lamp 220 and monitoring subassembly, can be so that this smoke alarm is in normal work, this work pilot lamp 220 can produce light.

In some examples, to enable testing of the smoke alarm for proper operation after installation, as shown in fig. 7a, the monitoring assembly 150 further comprises: alarm/mute components 153. In order to enable the alarm/noise reduction component 153 to be turned on or off, as shown in fig. 7a, the front cover assembly 130 may further include: an alarm/mute button 210; as shown in fig. 7b, the front cover 131 is further provided with an alarm/mute button through hole 1314; the alarm/mute button 210 may be mounted to the front cover 131 through the alarm/mute button through-hole 1314. Thus, after the smoke alarm is installed, the alarm/mute button 210 can be pressed to turn on or off the alarm/mute component 153, so that whether the smoke alarm is working normally can be tested.

In some examples, to further enhance the aesthetic appearance of the smoke alarm, the smoke alarm may further comprise: the light supplementing lamp cover 133, the light supplementing lamp cover 133 is installed on one side of the front cover 131 far away from the monitoring component 150.

In still other examples, in order to avoid the influence of the light filling lampshade 133 on the sound generated by the buzzer, the light filling lampshade 133 may be provided with a decoration ring through hole, and the diameter of the decoration ring through hole is greater than or equal to the outer diameter of the decoration ring; thus, the sound generated by the buzzer can be transmitted to the outside of the smoke alarm through the decorative ring through hole.

In some examples, the light supplement lamp cover 133 may be made of a material that allows infrared light to pass through.

Through setting up this light filling lamp shade 133, can be so that light filling lamp 191 is covered to promote the pleasing to the eye degree of outward appearance of this smoke alarm.

In still other examples, in order to avoid the influence of the light supplement lamp cover 133 on the alarm/noise reduction button 210 and the operation indicator lamp 220, a through hole for pressing the alarm/noise reduction button 210 and a through hole for allowing the light of the operation indicator lamp 220 to pass through are further provided on the light supplement lamp cover 133.

Thus, after the light supplement lampshade 133 is installed, the alarm/silencing key 210 can be pressed, and the light of the working indicator lamp 220 can be transmitted to the outside of the smoke alarm.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A smoke alarm characterised in that it comprises: the smoke sensor comprises a rear shell assembly, a middle shell assembly, a front cover assembly, a flow guide ring, a smoke sensor assembly and a monitoring assembly;

the rear housing assembly includes at least: a rear housing; the mid-shell assembly comprises: a middle shell cover and a middle shell; the front cover assembly includes at least: a front cover; the monitoring assembly includes: a camera;

the smoke sensor assembly is arranged between the rear shell and the middle shell cover;

the flow guide ring is arranged in a smoke sensing area between the middle shell cover and the middle shell;

a smoke sensing through hole is formed in the middle shell cover, so that the smoke sensing area is communicated with a first cavity formed by the rear shell and the middle shell cover;

the monitoring assembly is arranged in a second cavity formed between the middle shell and the front cover;

a camera mounting through hole is formed in the front cover, so that a camera of the monitoring assembly penetrates through the lens mounting through hole to shoot;

the outer ring of the flow guide ring is uniformly provided with a plurality of flow guide through holes along the circumference;

the inner ring of the guide ring is uniformly provided with a plurality of first guide ribs along the circumference, the first guide ribs are arranged along the radial direction of the guide ring, and the first guide ribs are arranged between two adjacent guide through holes;

a plurality of second flow guide ribs are uniformly arranged on one side, close to the middle shell cover, of the middle shell in the circumferential direction; the second flow guide ribs are arranged along the radial direction of the middle shell; the radial distance between the outer ring of the guide ring and the inner side of the first guide rib is smaller than the radial distance between the outer ring of the middle shell and the outer side of the second guide rib, so that when the guide ring is installed in a smoke induction area between the middle shell cover and the middle shell, the second guide rib penetrates through the inner ring of the guide ring;

wherein the smoke sensor assembly comprises: a first circuit board and a smoke sensor; the monitoring assembly further comprises: a second circuit board;

the first circuit board is arranged between the rear shell and the middle shell cover;

the second circuit board is arranged in the second cavity;

the first circuit board and the second circuit board are electrically connected by adopting a square flexible circuit board cable;

a square through hole perpendicular to the end face of the middle shell is formed in any one of the second flow guide ribs, and the shape of the square through hole is matched with that of the square flexible circuit board cable;

the middle shell is provided with a second flow guide rib with the square through hole, and the square through hole is matched with the square through hole in shape.

2. The smoke alarm of claim 1, wherein the deflector ring is connected at an upper end to the mid-shell cover and at a lower end to the mid-shell.

3. The smoke alarm of claim 1, wherein the outer ring of the deflector ring is circumferentially provided with a deflector groove, and the cross section of the deflector groove parallel to the deflector ring axis is V-shaped.

4. The smoke alarm according to claim 1, wherein a plurality of guide rib mounting through holes are uniformly formed in the circumferential direction of the middle shell cover, and the guide rib mounting through holes are formed in the radial direction of the middle shell cover;

5. The smoke alarm of claim 1, wherein the smoke sensor is mounted to the deflector ring inner ring through the smoke detection through hole.

6. A smoke alarm according to claim 1 wherein the rear housing is provided with a cable through-hole;

an external cable is connected to the first circuit board through the cable through hole; the external cable comprises a first power supply cable and a first signal transmission cable;

the square flexible circuit board cable comprises a second power supply cable and a second signal transmission cable.

7. The smoke alarm of claim 1, further comprising: a temperature sensor electrically connected with the first circuit board.

8. The smoke alarm of claim 1, further comprising: a heat sink;

notches and/or through holes which are matched with the shapes of the components welded on the second circuit board are formed in the radiating fins;

the mesochite is provided with a heat dissipation through hole.

9. The smoke alarm of claim 1, wherein a reset button and a secure digital card slot are mounted on either side of the second circuit board; the smoke alarm further comprises: a gap plug;

a first notch is formed in the outer side of one side, close to the monitoring assembly, of the middle shell, and the shape of the first notch is matched with that of the reset button;

a second notch is formed in the outer side of one side, close to the monitoring component, of the front cover, and the shape of the second notch is matched with that of the secure digital card clamping groove;

the middle shell and the front cover are aligned and installed by taking the first notch and the second notch as a reference; the notch plug is arranged at the position of a notch formed by the first notch and the second notch.

10. The smoke alarm of claim 1, wherein the smoke sensor assembly further comprises: installing an induction component;

the rear housing assembly further comprises: installing an induction key; the rear shell is provided with an installation induction key installation through hole, and the shape of the installation induction key installation through hole is matched with that of the installation induction key;

11. The smoke alarm of claim 10, wherein the rear housing assembly further comprises: installing a base; the mounting base is provided with a first mounting buckle;

a second mounting buckle is arranged on one side, away from the smoke sensor assembly, of the rear shell, and the rear shell is clamped with the mounting base through the first mounting buckle and the second mounting buckle;

the installation base is provided with an installation through hole matched with the installation induction key in shape, and the installation induction key penetrates through the installation through hole, so that when the installation base is installed to the installation surface, the installation induction component is in a conducting state.

12. The smoke alarm of claim 1, wherein a battery mounting slot is provided in a side of the middle housing cover adjacent the rear housing, a battery being mounted in the battery mounting slot in the first cavity;

13. The smoke alarm of claim 1, further comprising: a light supplement lamp assembly, the light supplement lamp assembly comprising: a light supplement lamp; a light supplement lamp mounting through hole is formed in the front cover;

the light supplementing lamp assembly is installed between the monitoring assembly and the front cover, so that the light supplementing lamp penetrates through the light supplementing lamp installation through hole to supplement light.

14. The smoke alarm of claim 13, wherein the monitoring assembly further comprises: a second circuit board; the light supplement lamp assembly further comprises: the light supplementing lamp mounting frame and the light supplementing lamp circuit board;

the light supplement lamp is mounted on the light supplement lamp mounting frame, and the light supplement lamp mounting frame is mounted on the light supplement lamp circuit board;

15. The smoke alarm of claim 14, further comprising: a buzzer;

a gap is formed in the light supplement lamp circuit board;

the buzzer is electrically connected with the second circuit board.

16. The smoke alarm of claim 15, wherein the front cover assembly further comprises: the decoration ring is provided with through holes which are uniformly distributed; the decorative cover is arranged on one side of the front cover, which is far away from the monitoring component;

17. The smoke alarm of claim 16, further comprising: the light supplementing lamp shade is arranged on one side, far away from the monitoring assembly, of the front cover;

the light supplement lamp cover is also provided with a through hole for pressing the alarm/silencing key and a through hole for enabling the light of the work indicator lamp to penetrate through.

18. The smoke alarm of claim 17, further comprising: a work indicator light;

a light guide column is arranged on one side, close to the middle shell, of the front cover, a through hole is formed in the light guide column, and a through hole with the same diameter as that of the through hole in the light guide column is formed in the position, where the light guide column is arranged, of the front cover;

19. The smoke alarm of claim 18, wherein said front cover assembly further comprises: alarm/mute button;

the front cover is also provided with an alarm/silencing key through hole; the monitoring assembly further comprises: alarm/noise reduction components; the alarm/silencing key penetrates through the alarm/silencing key through hole and is installed on the front cover.