CN211718997U - Smoke detector - Google Patents
Smoke detector Download PDFInfo
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- CN211718997U CN211718997U CN202020769436.8U CN202020769436U CN211718997U CN 211718997 U CN211718997 U CN 211718997U CN 202020769436 U CN202020769436 U CN 202020769436U CN 211718997 U CN211718997 U CN 211718997U
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Abstract
The embodiment of the utility model provides a smoke detector, include: the device comprises a labyrinth shell, a patch type transmitting tube, a patch type receiving tube, a reflector panel and a control circuit board; the patch type transmitting tube and the patch type receiving tube are both stuck in the labyrinth shell; the reflector is fixed at a first position in the labyrinth shell, wherein the first position is as follows: so that the first direction and the position where the optical axis direction of the patch type receiving tube intersects, the first direction is: the direction of the light obtained after the first emitting light is reflected by the reflector plate is as follows: the patch type emission tube emits light along the direction of an optical axis; the control circuit board is electrically connected with the patch type transmitting tube and the patch type receiving tube. The embodiment of the utility model provides a detector is felt to cigarette can directly paste SMD transmitting tube and SMD receiving tube in the labyrinth shell for the equipment process of detector is felt to cigarette is simpler.
Description
Technical Field
The utility model relates to a smoke detection technical field especially relates to a smoke detector.
Background
Smoke detectors are commonly installed in various locations and buildings in order to detect fires early enough to avoid significant life and property damage.
Existing smoke detectors typically include: labyrinth casing, mount pad, transmitting tube and receiver tube, the mount pad is fixed in the labyrinth casing, and transmitting tube and receiver tube are pegged graft on the mount pad and are located the labyrinth casing, and the optical axis of transmitting tube intersects with the optical axis of receiver tube for the light that the transmitting tube transmitted can be received to the receiver tube.
Because current smoke detector includes the mount pad, and transmitting tube and receiver tube peg graft on the mount pad, when the equipment smoke detector was felt, need install the mount pad in the labyrinth shell earlier, aim at the grafting position of mount pad again and peg graft transmitting tube and receiver tube on the mount pad for the assembly process of smoke detector is more complicated.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a smoke detector to simplify the equipment process of smoke detector. The specific technical scheme is as follows:
the embodiment of the utility model provides a smoke detector, include: the device comprises a labyrinth shell, a patch type transmitting tube, a patch type receiving tube, a reflector panel and a control circuit board;
the patch type transmitting tube and the patch type receiving tube are both stuck in the labyrinth shell;
the reflector is fixed at a first position in the labyrinth shell, wherein the first position is as follows: so that the first direction and the position where the optical axis direction of the patch type receiving tube intersects, the first direction is: the direction of the light obtained after the first emitting light is reflected by the reflector plate is as follows: the patch type emission tube emits light along the direction of an optical axis;
the control circuit board is electrically connected with the patch type transmitting tube and the patch type receiving tube.
Optionally, the labyrinth shell is a shell with an opening at one end;
the control circuit board is fixedly covered at the opening end of the labyrinth shell;
the patch type transmitting tube and the patch type receiving tube are both stuck to one side of the control circuit board facing the inner cavity of the labyrinth shell.
Optionally, the smoke detector further comprises: the first partition board is made of a full-light-reflecting material;
the first partition plate is fixed in the labyrinth shell and positioned between the patch type transmitting tube and the patch type receiving tube;
the face of first baffle with the optical axis of SMD launching tube is parallel, just the length of first baffle is located first length within range, wherein, first length within range is: so that the first baffle plate does not shield first reflected light and can shield the length range of second reflected light, the first reflected light is: the light emitted by the patch type emission tube is reflected by the reflector to obtain light, and the second reflected light is as follows: and light emitted by the patch type emission tube is reflected by the inner wall of the labyrinth shell to obtain light.
Optionally, the smoke detector further comprises: a second partition board made of a full-light-reflecting material;
the second partition plate is fixed in the labyrinth shell and is positioned between the patch type receiving pipe and the inner wall of the labyrinth shell;
the face of the second baffle is parallel to the optical axis of the patch type receiving tube, and the length of the second baffle is within a second length range, wherein the second length range is as follows: so that the second partition board can block the length range of third reflected light, the third reflected light is: and the first reflected light is reflected by the inner wall of the labyrinth shell to obtain light.
Optionally, the patch type emission tube is a patch type dual light emission tube.
Optionally, the patch type emission tube includes at least two patch type single light emission tubes, and the wavelength ranges of light emitted by the patch type single light emission tubes are different.
Optionally, a plurality of noise reduction protrusions are arranged on an inner wall of the labyrinth casing, which is opposite to the inner wall to which the patch type receiving tube is adhered.
Optionally, the labyrinth housing comprises: a first labyrinth subshell and a second labyrinth subshell;
the first labyrinth sub-shell is fixedly connected with the second labyrinth sub-shell;
the second labyrinth sub-housing includes: the light-shielding plate comprises a base and a plurality of light-shielding plates;
the light-shielding plates are fixedly arranged on the base and are uniformly distributed along the circumferential direction of the base, and the plate surfaces of the light-shielding plates are vertical to the bottom surface of the base;
the patch type transmitting tube and the patch type receiving tube are adhered in the first labyrinth sub-shell.
Optionally, the smoke detector further comprises an insect-proof net;
the insect-proof net surrounds the outside of each light-shielding plate of the second labyrinth sub-shell.
Optionally, the control circuit board is a printed circuit board
The embodiment of the utility model provides a smoke detector includes: the LED lamp comprises a labyrinth shell, a patch type transmitting tube, a patch type receiving tube, a reflecting plate and a control circuit board, wherein the patch type transmitting tube and the patch type receiving tube are both pasted in the labyrinth shell, and the reflecting plate is fixed at a first position in the labyrinth shell. Since the first position is: make the crossing position of optical axis direction of first direction and SMD receiving tube, first direction is: the direction of the light obtained after the first emitting light is reflected by the reflector plate is as follows: the patch type transmitting tube transmits light along the optical axis direction, so that the patch type receiving tube can receive the light reflected by the reflector and transmitted from the patch type transmitting tube. Because the control circuit board is electrically connected with the surface mount type transmitting tube and the surface mount type receiving tube, the control circuit board can control the surface mount type transmitting tube to emit light, and meanwhile, whether a fire disaster occurs is judged according to light signals received by the surface mount type receiving tube.
The embodiment of the utility model provides a smoke detector uses is SMD transmitting tube and SMD receiver tube, feels the equipment in-process of detector at the cigarette, can directly paste SMD transmitting tube and SMD receiver tube in the labyrinth shell, need not at the installation mount pad of labyrinth shell in-shell, also need not to aim at the grafting position of mount pad and install transmitting tube and receiver tube on the mount pad for the equipment process of detector is felt to the cigarette is simpler.
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 these drawings without creative efforts.
Fig. 1 is a schematic cross-sectional view of a smoke detector according to an embodiment of the present invention;
FIG. 2 is a perspective view of FIG. 1;
fig. 3 is a schematic cross-sectional view of another smoke detector provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second labyrinth sub-shell according to an embodiment of the present invention;
fig. 5 and fig. 6 are schematic structural diagrams of a first labyrinth sub-shell according to an embodiment of the present invention, wherein fig. 5 and fig. 6 are schematic structural diagrams of the first labyrinth sub-shell with different viewing angles.
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 work belong to the protection scope of the present invention.
In order to simplify the equipment process of smoke detector, the embodiment of the utility model provides a smoke detector is right below the utility model provides a smoke detector is introduced.
As shown in fig. 1 and 2, the embodiment of the utility model provides a smoke detector, include: the device comprises a labyrinth shell 1, a patch type transmitting tube 2, a patch type receiving tube 3, a reflector 4 and a control circuit board 5; the patch type transmitting tube 2 and the patch type receiving tube 3 are both stuck in the labyrinth shell 1; the reflector 4 is fixed at a first position in the labyrinth housing 1, wherein the first position is: so that the first direction and the optical axis direction of the patch type receiving tube 3 intersect, and the first direction is: the direction of the light obtained after the first emitting light is reflected by the reflector 4 is as follows: the patch type emission tube 2 emits light along the optical axis direction; the control circuit board 5 is electrically connected with the patch type transmitting tube 2 and the patch type receiving tube 3.
In fig. 1, the dotted line indicates the propagation path of light, and the black line indicates the structure of the smoke detector. In fig. 1, 101 denotes first emission light, 102 denotes an optical axis of the surface mount type receiving tube 3, and 103 denotes light obtained by reflecting the first emission light 101 by the reflector 4. In fig. 1, the direction of the light 103 obtained after the first emitted light 101 is reflected by the reflector 4 intersects the direction of the optical axis 102 of the surface mount receiver tube 3.
The reflector 4 can be fixed in the labyrinth casing 1 by means of bolt or screw connection, riveting, bonding, clamping and the like, as shown in fig. 1, the reflector 4 can also be of an integrated structure with the labyrinth casing 1, and the reflector 4 can also be fixed in the labyrinth casing 1 by means of other methods. The cross section of the reflector 4 may be rectangular, circular, irregular polygonal, or other shapes.
The first position may be: so that the included angle between the first direction and the optical axis direction of the patch type receiving tube 3 is less than 90 degrees, the first position may also be: so that the included angle between the first direction and the optical axis direction of the patch type receiving tube 3 is not less than 90 degrees. When the included angle of the first direction and the optical axis direction of the patch type receiving tube 3 is smaller than 90 degrees, the light emitted by the patch type transmitting tube 2 can form backward reflection after being reflected by the reflector 4, and when the included angle of the first direction and the optical axis direction of the patch type receiving tube 3 is not smaller than 90 degrees, the light emitted by the patch type transmitting tube 2 can form forward reflection after being reflected by the reflector 4. Because the sensitivity that the detector was felt to the smoke can be made higher to the forward reflection, and the back reflection can be so that the detector was felt to the smoke more promptly and the black cigarette was sensed, consequently, when the sensitivity requirement to the detector was felt to the smoke was higher, first position also can be: make the contained angle of first direction and SMD receiving tube 3's optical axis direction not less than 90 the position, when the black cigarette in the environment needs to be surveyed, first position can be: so that the included angle between the first direction and the optical axis direction of the patch type receiving tube 3 is smaller than 90 degrees. As shown in fig. 1, the first position is: so that the included angle between the first direction and the optical axis direction of the patch type receiving tube 3 is smaller than 90 degrees.
In one embodiment, the patch type emission tube 2 may be a patch type dual light emission tube or a patch type single light emission tube. When the patch type emission tube 2 is a patch type dual light emission tube, the dual light emission tube can emit lights with different wavelength ranges, and each light can detect smoke with different particle size ranges, so that the particle size range of the smoke detector capable of detecting smoke particles is wider.
In another embodiment, the patch type emission tube 2 may include at least two patch type single light emission tubes, and the wavelength ranges of the light emitted by the patch type single light emission tubes are different, for example, the patch type emission tube 2 may include an emission tube emitting blue light and an emission tube emitting macro light. Thus, the range of the particle size of the smoke detector which can detect smoke particles is wider.
The embodiment of the utility model provides a smoke detector can make SMD receiver tube 3 receive by 4 reflectances of reflector panel, from the light of SMD transmitting tube 2 transmission, because control circuit board 5 is connected with SMD transmitting tube 2, the equal electricity of SMD receiver tube 3 for control circuit board 5 can control SMD transmitting tube 2 transmission light, judges whether conflagration has taken place according to the light signal that SMD receiver tube 3 received simultaneously. The embodiment of the utility model provides a smoke detector uses is SMD transmitting tube 2 and SMD receiving tube 3, in the equipment process of smoke detector, can directly paste SMD transmitting tube 2 and SMD receiving tube 3 in labyrinth casing 1, need not at labyrinth casing 1 interior mount pad, the grafting position that also need not to aim at the mount pad installs transmitting tube and receiving tube on the mount pad, make the equipment process of smoke detector simpler, and simultaneously, also make the structure of smoke detector simpler.
In one embodiment, as shown in fig. 1 and 2, the labyrinth casing 1 may be a casing with an open end, the control circuit board 5 may be fixedly covered on the open end of the labyrinth casing 1, and the patch type transmitting tube 2 and the patch type receiving tube 3 are both adhered to a side of the control circuit board 5 facing the inner cavity of the labyrinth casing 1. This embodiment is more convenient for the equipment of smoke detector, makes the structure of smoke detector compacter simultaneously.
In one embodiment, as shown in fig. 1 and 2, the smoke detector may further include: first baffle 6 of total reflection of light material, first baffle 6 are fixed in labyrinth casing 1, and are located between SMD launching tube 2 and SMD receiving tube 3, and the face of first baffle 6 is parallel with SMD launching tube 2's optical axis, and the length of first baffle 6 is located first length within range, and wherein, first length within range is: so that the first baffle 6 will not block the first reflected light and can block the length range of the second reflected light, the first reflected light is: the light emitted by the patch type emission tube 2 is reflected by the reflector 4 to obtain light, and the second reflected light is as follows: the light emitted by the patch type emission tube 2 is reflected by the inner wall of the labyrinth shell 1 to obtain light.
First baffle 6 can be fixed in labyrinth casing 1 through modes such as bolt or screw connection, riveting, bonding, joint, first baffle 6 also can be the integrated into one piece structure with labyrinth casing 1, and first baffle 6 can also be fixed in labyrinth casing 1 through other modes. The cross section of the first separator 6 may be rectangular, circular, irregular polygonal, or the like, or may have other shapes. For example, as shown in fig. 2, the first partition 6 may be a notched plate. The specific length of the first partition 6 is not limited in the present embodiment, and the length of the first partition 6 is sufficient so that the first partition 6 can block the second reflected light without blocking the first reflected light, for example, the lengths of the first partitions 6 in fig. 1 and 3 are different, but the first reflected light is not blocked and the second reflected light is not blocked.
This embodiment sets up first baffle 6 between SMD transmitting tube 2 and SMD receiving tube 3, can separate the region that SMD transmitting tube 2 belongs to and the region that SMD receiving tube 3 belongs to, form two regions of being separated by, because first baffle 6 can not shelter from first reverberation and can shelter from the second reverberation, like this, both reduced SMD receiving tube 3 and received the light that gets to the detection precision after the inner wall reflection of labyrinth shell 1, do not influence SMD receiving tube 3 again and receive the light that is used for surveying that gets after reflection of reflector panel 4, improved the detection precision of smoke detector.
In one embodiment, as shown in fig. 1 and 2, the smoke detector may further include: second baffle 7 of total reflection of light material, second baffle 7 are fixed in labyrinth casing 1, and are located between SMD receiver tube 3 and the inner wall of labyrinth casing 1, and the face of second baffle 7 is parallel with SMD receiver tube 3's optical axis, and 7 length of second baffle are located second length within range, and wherein, second length within range is: so that the second partition 7 can block the length range of the third reflected light: the first reflected light is reflected by the inner wall of the labyrinth case 1.
The second partition plate 7 can be fixed in the labyrinth shell 1 in the modes of bolt or screw connection, riveting, bonding, clamping and the like, the second partition plate 7 can also be of an integrally formed structure with the labyrinth shell 1, and the second partition plate 7 can also be fixed in the labyrinth shell 1 in other modes. The cross section of the second separator 7 may be rectangular, circular, irregular polygonal, or the like, or may have other shapes. In the present embodiment, the specific length of the second partition 7 is not limited, and the length of the second partition 7 may be such that the second partition 7 can block the third reflected light, and for example, the lengths of the second partitions 7 in fig. 1 and 3 are different, but both of them can block the third reflected light.
This embodiment sets up second baffle 7 between SMD receiving tube 3 and the inner wall of labyrinth shell 1, can form the optical trap, can form the region of making an uproar, the region of making an uproar falls is the region that forms between second baffle 7 and the inner wall of labyrinth shell 1, because second baffle 7 can shelter from the third reverberation, that is to say, the third reverberation can be sheltered from by second baffle 7 in the region of making an uproar falls, like this, can reduce the light that gained after the inner wall reflection of labyrinth shell 1 is received to SMD receiving tube 3 and influence the detection precision, the detection precision of smoke detector has been improved.
In one embodiment, as shown in fig. 1 and 2, a plurality of noise reduction protrusions 8 are provided on an inner wall of the labyrinth housing 1, which is opposite to an inner wall to which the patch-type receiving tube 3 is attached. The cross section of the noise reduction protrusion 8 can be triangular, trapezoidal or circular, and also can be other shapes, and the embodiment of the utility model provides a do not specifically limit. This embodiment can further reflect and absorb the inside light except first reverberation of labyrinth casing 1 through making an uproar arch 8 that falls, has further reduced the light that influences the detection precision that SMD receiving tube 3 received, has improved the detection precision that the detector was felt to the cigarette.
In one embodiment, as shown in fig. 1 and 2, the labyrinth housing 1 may include: the labyrinth structure comprises a first labyrinth sub-shell 11 and a second labyrinth sub-shell 12, wherein the first labyrinth sub-shell 11 is fixedly connected with the second labyrinth sub-shell 12.
As shown in fig. 4, the second labyrinth sub-housing 12 may include: the base 121 and a plurality of light-blocking plates 122, light-blocking plates 122 are fixedly mounted on the base 121, and are uniformly distributed along the circumferential direction of the base 121, the surface of each light-blocking plate 122 is perpendicular to the bottom surface of the base 121, the surface mount type transmitting tube 2 and the surface mount type receiving tube 3 are adhered to the inside of the first labyrinth sub-shell 11, and a certain distance is reserved between every two adjacent light-blocking plates 122.
The light shielding plate 122 may be a plate with an L-shaped cross section, or may be a plate with other shapes, and the embodiment of rushing to a horse is not particularly limited.
The first labyrinth sub-housing 11 and the second labyrinth sub-housing 12 may be fixedly connected by bolts, screws, clamping, bonding, hot-melt connection, screw connection, or the like.
Fig. 5 and 6 show a schematic structural view of the first labyrinth sub-housing 11.
In one embodiment, as shown in fig. 1 and 2, the smoke detector may further include an insect-proof net 9, and the insect-proof net 9 is enclosed outside each light-shielding plate 122 of the second labyrinth sub-housing 12. Thus, the winged insects, crawlers and the like can be prevented from entering the labyrinth housing 1, and the fault phenomenon of the smoke detector is reduced.
In one embodiment, the control circuit board 5 may be a printed circuit board, which makes the smoke detector simpler and more compact and more convenient to install.
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.
The above description is only a 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 (10)
1. A smoke detector, comprising: the device comprises a labyrinth shell (1), a patch type transmitting tube (2), a patch type receiving tube (3), a reflector (4) and a control circuit board (5);
the patch type transmitting tube (2) and the patch type receiving tube (3) are both pasted in the labyrinth shell (1);
the reflector (4) is fixed at a first position in the labyrinth casing (1), wherein the first position is that: so that the first direction and the optical axis direction of the patch type receiving tube (3) are crossed, wherein the first direction is as follows: the direction of the light obtained after the first emitting light is reflected by the reflector (4) is as follows: the patch type emission tube (2) emits light along the direction of an optical axis;
the control circuit board (5) is electrically connected with the patch type transmitting tube (2) and the patch type receiving tube (3).
2. Smoke detector according to claim 1, characterized in that the labyrinth housing (1) is a housing open at one end;
the control circuit board (5) is fixedly covered at the opening end of the labyrinth shell (1);
the patch type transmitting tube (2) and the patch type receiving tube (3) are both pasted on one side of the control circuit board (5) facing the inner cavity of the labyrinth shell (1).
3. The smoke detector of claim 1, further comprising: a first partition (6) made of a fully reflective material;
the first partition plate (6) is fixed in the labyrinth shell (1) and is positioned between the patch type transmitting tube (2) and the patch type receiving tube (3);
the face of first baffle (6) with the optical axis of SMD launching tube (2) is parallel, just the length of first baffle (6) is located first length within range, wherein, first length within range is: so that the first baffle (6) does not block the first reflected light and can block the length range of the second reflected light, the first reflected light is: the light emitted by the patch type emission tube (2) is reflected by the reflector (4) to obtain light, and the second reflected light is as follows: the light emitted by the patch type emission tube (2) is reflected by the inner wall of the labyrinth shell (1) to obtain light.
4. The smoke detector of claim 3, further comprising: a second partition (7) made of a fully reflective material;
the second partition plate (7) is fixed in the labyrinth shell (1) and is positioned between the patch type receiving pipe (3) and the inner wall of the labyrinth shell (1);
the face of second baffle (7) with the optical axis of SMD receiving tube (3) is parallel, just second baffle (7) length is located second length range, wherein, second length range is: so that the second baffle (7) can block the length range of third reflected light: the first reflected light is reflected by the inner wall of the labyrinth housing (1).
5. The smoke detector according to claim 1, wherein said patch type emission tube (2) is a patch type dual light emission tube.
6. The smoke detector according to claim 1, wherein said patch type emission tube (2) comprises at least two patch type single light emission tubes, each of said patch type single light emission tubes emitting light in a different wavelength range.
7. The smoke detector according to claim 1, wherein a plurality of noise reduction protrusions (8) are provided on an inner wall of the labyrinth housing (1) opposite to an inner wall to which the patch type receiving pipe (3) is adhered.
8. A smoke detector according to any of the claims 1-7, wherein said labyrinth housing (1) comprises: a first labyrinth sub-housing (11) and a second labyrinth sub-housing (12);
the first labyrinth sub-shell (11) is fixedly connected with the second labyrinth sub-shell (12);
the second labyrinth sub-housing (12) comprises: a base (121) and a plurality of light-shielding plates (122);
the light-shielding plate (122) is fixedly arranged on the base (121) and is uniformly distributed along the circumferential direction of the base (121), and the plate surface of the light-shielding plate (122) is vertical to the bottom surface of the base (121);
the patch type transmitting tube (2) and the patch type receiving tube (3) are pasted in the first labyrinth subshell (11).
9. A smoke detector according to claim 8, wherein said smoke detector further comprises an insect screen (9);
the insect-proof net (9) is enclosed outside each light-proof plate (122) of the second labyrinth sub-shell (12).
10. Smoke detector according to any of claims 1-7, characterized in that the control circuit board (5) is a printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020769436.8U CN211718997U (en) | 2020-05-11 | 2020-05-11 | Smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020769436.8U CN211718997U (en) | 2020-05-11 | 2020-05-11 | Smoke detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211718997U true CN211718997U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020769436.8U Active CN211718997U (en) | 2020-05-11 | 2020-05-11 | Smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211718997U (en) |
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2020
- 2020-05-11 CN CN202020769436.8U patent/CN211718997U/en active Active
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