WO2022100317A1 - 烟雾传感装置 - Google Patents

烟雾传感装置 Download PDF

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Publication number
WO2022100317A1
WO2022100317A1 PCT/CN2021/121990 CN2021121990W WO2022100317A1 WO 2022100317 A1 WO2022100317 A1 WO 2022100317A1 CN 2021121990 W CN2021121990 W CN 2021121990W WO 2022100317 A1 WO2022100317 A1 WO 2022100317A1
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WO
WIPO (PCT)
Prior art keywords
smoke
casing
sensing device
smoke sensing
housing
Prior art date
Application number
PCT/CN2021/121990
Other languages
English (en)
French (fr)
Inventor
李飞
刘秀华
王亮
Original Assignee
哲弗智能系统（上海）有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202022595332.2U external-priority patent/CN213458357U/zh
Priority claimed from CN202011254056.1A external-priority patent/CN112233367A/zh
Application filed by 哲弗智能系统（上海）有限公司 filed Critical 哲弗智能系统（上海）有限公司
Publication of WO2022100317A1 publication Critical patent/WO2022100317A1/zh

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    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device

Definitions

  • the present application relates to the technical field of induction monitoring, and in particular, to a smoke sensing device.
  • the smoke sensing device is widely used, and its structure mainly includes a detection chamber and light-emitting parts and light-receiving parts arranged in the detection chamber. Under normal circumstances, the intensity of the light emitted by the light-emitting part received by the light-receiving part is very small, so that no photocurrent is generated, and thus an alarm is not triggered.
  • the existing smoke sensing devices all use plug-in light-emitting parts and light-receiving parts, and the light-emitting parts and light-receiving parts are ordinary diodes. Therefore, the current smoke sensing devices are all non-vehicle-grade smoke sensors, which cannot meet the requirements of vehicle regulations. level requirements.
  • a light-emitting component and a light-receiving component that meet automotive-grade components are provided, so as to improve the safety index of the smoke sensing device, so that the smoke sensing device meets the safety requirements in the automotive field.
  • a smoke sensing device comprising:
  • a smoke chamber is formed inside the casing, and an optical trap is arranged in the smoke chamber;
  • the air flow channel penetrates through the side wall of the casing to allow external air to enter and exit the smoke chamber;
  • a emitting component which is a patch-type structure, is arranged in the smoke chamber, and is used for emitting detection light;
  • the light guide assembly is arranged in the smoke chamber and overlaid on the emitting component, so as to adjust the propagation direction of the detection light;
  • the receiving part is a patch-type structure, is arranged in the smoke chamber, and is used for receiving the detection light refracted by the external gas in the smoke chamber;
  • the electrical connection board is arranged on the housing and is connected to the transmitting part and the receiving part respectively, for supplying power to the transmitting part and exporting the photocurrent generated by the receiving part to the outside .
  • the electrical connection board and the housing form a transmitting cavity and a receiving cavity in communication with the smoke cavity.
  • the transmitting component is located in the transmitting cavity and attached to the electrical connection board, and the receiving component is located in the receiving cavity and attached to the electrical connecting board.
  • the light guide assembly includes:
  • a refraction part includes a receiving surface and a refraction surface, the receiving surface is covered on the emitting component and used to receive the detection light, and the refraction surface is arranged above the receiving surface and used to refract the said detection light;
  • a collimating part is arranged on one side of the refracting part, and is used for adjusting the parallelism of the refracted probe light.
  • the housing includes:
  • a second casing, the second casing and the first casing together form the smoke chamber, and the electrical connection board is provided on a side of the second casing away from the first casing.
  • the smoke sensing device further includes a first fixing part.
  • the first fixing member extends from the second casing to the first casing to form a slot for clamping the light guide assembly.
  • the smoke sensing device further includes a second fixing member.
  • the second fixing part is cooperatively connected with the first fixing part to form an accommodating cavity for accommodating the light guide assembly.
  • the housing further includes:
  • a third casing, the third casing is disposed on the side of the electrical connection board away from the second casing, and is formed together with the first casing and the second casing for accommodating the sealed cavity of the electrical connection board.
  • the first housing is provided with a first air intake hole
  • the second housing is provided with a second air intake hole
  • the third housing is provided with a third air intake hole.
  • the first air intake hole, the second air intake hole and the third air intake hole are located opposite to each other to form the air flow passage.
  • the housing further includes a sealing structure, and the sealing structure includes a first eversion portion and a third eversion portion that are sleeved with each other.
  • the first eversion portion extends from the second air inlet to the third casing
  • the third eversion portion extends from the third air inlet to the second casing .
  • the electrical connection plate is sleeved on the sealing structure through a through hole provided thereon, so as to fix the electrical connection plate on the casing.
  • the sealing chamber is provided independently of the smoke chamber.
  • the smoke sensing device further includes a light collecting part.
  • the condensing part is covered on the receiving part, and is used for guiding the detection light refracted by the external gas into the receiving part.
  • the smoke sensing device further includes a noise reduction rib.
  • the noise reduction rib extends from the front wall, the rear wall and the right wall of the housing to the airflow channel, so as to prevent the surrounding walls from refracting the detection light to the receiving part.
  • the transmitting part and the receiving part are set as a patch-type structure. Since the patch-type structure has the advantages of high brightness, fast response, shock resistance, energy saving, high resolution and shock resistance, the smoke sensing device can be used. Meet the safety requirements in the automotive field, and then make the smoke sensing device meet the requirements of the vehicle level.
  • the installation of the patch-type emitting part and the receiving part can be facilitated without considering the installation angle of the emitting part and the receiving part, which ensures that under normal conditions Most of the lower detection light enters the inside of the optical trap and will not be received by the receiving part, while most of the detection light can be received by the receiving part in a fire situation. In the event of fire, most of the detection light enters the receiving part, which can ensure the alarm accuracy of the receiving part, thereby improving the reliability of the smoke device.
  • FIG. 1 is an exploded view of a smoke sensing device in one embodiment of the present application
  • FIG. 2 is a partial assembly view of the smoke sensing device in one of the embodiments of the present application.
  • Fig. 3 is the sectional view of the first part A in Fig. 2 along the M-M section;
  • FIG. 4 is a cross-sectional view of the second portion B in FIG. 2 along the M-M section;
  • FIG. 5 is a cross-sectional view of the third part C along the M-M section in FIG. 2;
  • FIG. 6 is a sectional view of the fourth part D in FIG. 2 along the M-M section;
  • FIG. 7 is a cross-sectional view of a smoke sensing device in one embodiment of the present application, wherein the outside air does not contain smoke particles;
  • FIG. 8 is a cross-sectional view of a smoke sensing device in one embodiment of the present application, wherein the outside air contains smoke particles;
  • FIG. 9 is a bottom view of the first housing in one of the embodiments of the present application.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with “first”, “second” may expressly or implicitly include at least one of that feature.
  • plurality means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • installed may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between the two elements, unless otherwise specified limit.
  • a first feature "on” or “under” a second feature may be in direct contact with the first and second features, or the first and second features indirectly through an intermediary touch.
  • the first feature being “above”, “over” and “above” the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature being “below”, “below” and “below” the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.
  • a smoke sensing device includes a housing 100 , an airflow channel 200 , a emitting part 300 , a light guide assembly 400 , a receiving part 500 and an electrical connection board 600 .
  • the transmitting part 300 and the receiving part 500 are both patch-type structures.
  • a smoke chamber (not shown) is formed inside the housing 100 .
  • An optical trap 1000 is arranged in the smoke chamber, and the airflow channel 200 runs through the side wall of the casing, so as to allow external air to enter and exit the smoke chamber.
  • the emitting part 300, the light guide assembly 400 and the receiving part 500 are provided in the smoke chamber.
  • the transmitting part 300 and the receiving part 500 are attached to the side wall of the smoke chamber.
  • the electrical connection plate 600 is disposed on the housing 100 through the connection bolts 1300 , and is connected with the transmitting part 300 and the receiving part 500 respectively.
  • the electrical connection board 600 is respectively connected with the transmitting part 300 and the receiving part 500 , and is covered on the transmitting part 300 .
  • the emitting part 300 is used for emitting detection light.
  • the light guide assembly 400 is used to adjust the propagation direction of the detection light.
  • the receiving part 500 is used for receiving the detection light refracted by the external gas in the smoke chamber and generating a photocurrent.
  • the electrical connection board 600 is used for supplying power to the transmitting part 300 and conducting the photocurrent generated by the receiving part 500 to the outside.
  • the parallel detection light rays In a state where there are no smoke particles in the outside air, the parallel detection light rays cannot be received by the receiving part 500 , and in a state where smoke particles are contained in the outside air, the parallel detection light rays are transmitted under the action of the smoke particles.
  • the direction can be received by the receiving part 500 .
  • the electrical connection board 600 is a PCBA board.
  • the smoke particles are contained in the outside air, and the smoke particles are contained in the smoke chamber.
  • the smoke particles enter the smoke chamber through the airflow channel 200 .
  • the emitting end points to the airflow channel, so the detection light emitted by the emitting component 300 (as indicated by the arrow in FIG. 8 ) collides with the smoke particles (the solid circles in FIG. 8 ) and diffuses to the surroundings.
  • the receiving part 500 is arranged around the airflow channel 200 , the detection light is received by the receiving part 500 , and the impedance of the receiving part 500 changes to generate a photocurrent, thereby realizing the conversion of the smoke signal into an electrical signal, and the photocurrent passing through the electrical connection board 600 Controllers that export out to peripherals.
  • the controller receives the photocurrent and compares it with an internal preset threshold. When the photocurrent exceeds the threshold, the controller judges that the smoke concentration is high and sends an alarm signal to the fire department. The fire department can deal with it in time after receiving the alarm signal.
  • the detection light emitted by the emitting part 300 will basically contact the smoke particles, which enhances the diffusion of the detection light Effect.
  • the receiving part 500 is arranged around the airflow channel and the receiving end points to the airflow channel, the diffused probe light is received by the receiving part 500 in large quantities, and the impedance of the receiving part 500 changes significantly to generate a large photocurrent, and the photocurrent is easy to Exceeding the threshold value and triggering an alarm, which improves the response sensitivity, enables the fire department to know and handle the fire in time at the initial stage of the fire, improves the efficiency of fire extinguishing and disaster reduction, and reduces the hidden dangers to the safety of people's lives and properties.
  • the above-mentioned smoke sensing device further includes a shielding cover 1200 for shielding the influence of external signals on the photocurrent.
  • the transmitting part and the receiving part are arranged in a patch-type structure. Because the patch structure has the advantages of high brightness, fast response, shock resistance, energy saving, high resolution, and shock resistance, the smoke sensing device can meet the safety requirements of the automotive field, and then the smoke sensing device can meet the requirements of vehicle regulations. At the same time, since the propagation direction of the detection light emitted by the emitting part is adjusted by the light guide assembly, it is convenient for the installation of the patch-type emitting part and the receiving part, and the installation angle of the emitting part and the receiving part does not need to be considered, so as to ensure the detection light under normal conditions.
  • Most of the light enters the optical trap and is not received by the receiving part, while most of the detection light can be received by the receiving part in a fire situation. In the event of fire, most of the detection light enters the receiving part, which can ensure the alarm accuracy of the receiving part, thereby improving the reliability of the smoke device.
  • the light emitted from the emitting part 300 contacts the inner wall of the housing 100 and is reflected and diverged to form a number of detection rays parallel to the receiving end of the receiving part 500 . absorb.
  • the optical trap and the housing are integrally injection-molded, so as to simplify the manufacturing process and installation steps of the above-mentioned smoke sensing device.
  • the electrical connection board 600 and the housing 100 together form a transmitting cavity 121 and a receiving cavity 122 that communicate with the smoke cavity.
  • the transmitting component 300 is located in the transmitting cavity 121 and attached to the electrical connection board 600
  • the receiving component 500 is located in the receiving cavity 122 and attached to the electrical connecting board 600 .
  • the emitting component 300 includes a chip light emitting diode, and the chip light emitting diode is attached to the side wall of the smoke chamber.
  • SMD light-emitting diodes have the advantages of small size, low power consumption, long service life, high brightness, environmental protection, durability and reliability, suitable for mass production, fast response, shock resistance, energy saving, high resolution, shock resistance, and designability. .
  • the receiving component 500 includes a chip-type photosensitive receiving tube, and the chip-type photosensitive receiving tube can receive the detection light emitted by the chip-type light-emitting diode and generate a photocurrent. It can be understood that, the number of transmitting components 300 and receiving components 500 may be set to two or more as required, and the number of transmitting components 300 and receiving components 500 is not specifically limited in this application.
  • the transmitting component is placed in the transmitting cavity, and the receiving component is placed in the receiving cavity, and the transmitting component and the receiving component are respectively attached to the electrical connection board, so that the installation process of the transmitting component and the receiving component is achieved.
  • the utility model has the advantages of simplicity and high installation stability, while reducing the demand for the installation surface, and reducing the difficulty of forming and processing the smoke sensing device.
  • the light guide assembly 400 includes a refraction part 410 and a collimation part 420 .
  • the refraction part 410 includes a receiving surface 411 and a refraction surface 412.
  • the receiving surface 411 covers the transmitting component 300 .
  • the refraction surface 412 is inclined relative to the receiving surface 411 and is disposed above the receiving surface 411 .
  • the collimating part 420 is disposed on one side of the refraction part 410 .
  • the receiving surface 411 is used to receive the detection light, and the refraction surface 412 is used to refract the detection light.
  • the collimating part 420 is used to adjust the parallelism of the refracted probe light.
  • the receiving surface 411 covers the emitting component 300 to increase the intensity of the detection light received by the refraction part 410 .
  • the collimating portion 420 is a semicircular optical path collimating structure.
  • the light guide assembly of the above-mentioned smoke sensing device includes a refraction part and a collimating part, which improves the propagation direction of the detection light, thereby improving the sensing sensitivity and stability of the smoke sensing device.
  • the housing 100 includes a first casing 110 and a second casing 120 .
  • the first casing 110 and the second casing 120 together form a smoke chamber.
  • the electrical connection plate 600 is disposed on the side of the second casing 120 away from the first casing 110 , that is, the electrical connection plate 600 is disposed outside the smoke chamber.
  • the transmitting part 300 is connected to the electrical connection board 600 through the second housing 120
  • the receiving part 500 is connected to the electrical connection board 600 through the second housing 120 .
  • the first casing and the second casing have simple structures and are easy to install.
  • a reinforcing rib (not shown) and a fixing hole (not shown) are provided on the surface of the housing 100 .
  • the reinforcing ribs can improve the strength of the housing 100
  • the fixing holes facilitate the use of fasteners to install the smoke sensing device on a wall or a vehicle.
  • the housing 100 further includes a third housing 130 .
  • the third housing 130 is disposed on the side of the electrical connection board 600 away from the second housing 120 , and the first housing 110 , the second housing 120 and the third housing 130 are jointly formed for accommodating the electrical connection board 600 seal chamber (not shown).
  • the third housing can provide protection for the electrical connection board, so as to prevent the electrical connection board from being directly exposed to external damage, thereby prolonging the service life of the smoke sensing device.
  • a positioning portion (not shown) is provided on a side surface of the third housing 130 facing the electrical connection board 600 .
  • the positioning portion cooperates with the positioning holes (not shown) on the electrical connection board 600 to limit the relative movement of the third housing 130 and the electrical connection board 600 and prevent the third housing 130 and the electrical connection board 600 from relative translational shaking.
  • a clamping structure is provided between the third casing 130 and the first casing 110 .
  • the third casing 130 is engaged with the first casing 110 through a clamping structure.
  • the clamping structure includes a clamping slot 111 and a clamping claw 131 .
  • the clamping slot 111 is provided in the first housing 110
  • the clamping claw 131 is provided in the third housing 130 .
  • the clamping claw 131 is buckled into the clamping slot 111 for clamping the first casing 110 and the third casing 130 .
  • the above-mentioned smoke sensing device facilitates the quick installation and disassembly of the third casing and the first casing by means of snap connection, facilitates assembly and maintenance, reduces the difficulty of operation, and directly disassembles and replaces the required parts after damage, which saves money. cost.
  • the above-mentioned smoke sensing device further includes a power supply connection part 1100 .
  • the power supply connection part 1100 is connected to the electrical connection board 600 for connecting with an external power supply to supply power to the transmitting part 300.
  • the power supply connection component 1100 is a PIN pin.
  • a battery is installed on the electrical connection board 600, and the emitting component 300 is powered directly by the battery.
  • the above-mentioned smoke sensing device further includes a first fixing member 700 .
  • the first fixing member 700 extends from the second casing 120 to the first casing 110 to form a slot (not shown) for clamping the light guide assembly 400 .
  • the light guide assembly 400 is snapped into the slot to fix the light guide assembly 400 on the second housing 120 .
  • the light guide assembly 400 is fixed on the first casing 110 .
  • the above-mentioned smoke sensing device can enhance the positional stability of the transmitting part and the receiving part after being clamped, avoid shaking during use, and facilitate the quick disassembly and replacement of the parts.
  • the above-mentioned smoke sensing device further includes a second fixing member 800 .
  • the first fixing member 700 and the second fixing member 800 are matched and connected to form an accommodating cavity (not shown) for accommodating the light guide assembly 400 .
  • the first fixing member 700 abuts on the lower surface of the light guide assembly 400
  • the second fixing member 800 abuts on the upper surface of the light guide assembly 400 .
  • the light guide assembly 400 can be fixed in the accommodating cavity formed by the first fixing member 700 and the second fixing member 800 .
  • a locking structure (not shown) is further provided between the first fixing member 700 and the second fixing member 800 .
  • the locking structure is used to limit the relative movement between the first fixing member 700 and the second fixing member 800 .
  • the locking structure includes a locking hole and a locking block, wherein the locking hole is provided on the second fixing member 800 , and the locking block is provided on the first fixing member 700 .
  • the locking block of the first fixing member 700 can be inserted into the locking hole of the second fixing member 800 to fix the light guide assembly 400 in the accommodating cavity formed by the first fixing member 700 and the second fixing member 800 .
  • the locking structure includes a locking hole and a locking block, wherein the locking hole is provided on the first fixing part 700 , and the locking block is provided on the second fixing part 800 .
  • the above-mentioned smoke sensing device restricts the position of the light guide assembly by arranging the second fixed part, and then through the cooperation of the first fixed part and the second fixed part, prevents the relative movement of the light guide assembly during use, and improves the above-mentioned smoke transmission.
  • the stability of the sensor device is not limited.
  • the first housing 110 is provided with a first air intake hole 210
  • the second housing 120 is provided with a second air intake hole 220
  • the third housing 130 is provided with a third air intake hole 230 .
  • the first air intake hole 210 , the second air intake hole 220 and the third air intake hole 230 are located opposite to each other to form the air flow passage 200 .
  • the smoke particles in the outside air can enter through the first air inlet hole 210 and pass through the second casing 120 , the electrical connection plate 600 and the third air inlet hole 230 in sequence, so as to form a through-the-first casing 110 , the third air inlet hole 230 The air passages 200 of the second casing 120 and the third casing 130 .
  • the above-mentioned smoke sensing device forms an air flow channel through the first air intake hole, the second air intake hole and the third air intake hole which are arranged in sequence and opposite to each other, and it is not necessary to separately install a physical air flow channel inside the smoke sensor device. It is simpler and more convenient to manufacture; and because the air flow channel is not a solid body, it will not affect the normal diffusion of the smoke particles to the detection light, and the normal reception of the formed diffused light by the receiving component.
  • the first air inlet 210 on the first casing 110 and the third casing 130 are provided with a block (not shown).
  • the block is used to block the entry of large particle structures to ensure the normal operation and use of the smoke sensing device.
  • the spacing of the blocks is 1.3mm. If the spacing is too large, it cannot play a blocking role. If the spacing is too small, it will affect the entry of smoke. Therefore, the spacing of the blocks is selected to be 1.3mm, and this size can achieve the best effect. .
  • the housing 100 further includes a sealing structure 140 .
  • the sealing structure 140 includes a first eversion portion 141 and a third eversion portion 142 that are sleeved or snapped with each other.
  • the first eversion portion 141 extends from the second air inlet hole 220 to the third casing 130
  • the third eversion portion 142 extends from the third air inlet hole 230 of the third casing 130 to the second casing 120 .
  • the third casing 130 and the second casing 120 are snapped together by the third eversion portion 142 and the first eversion portion 141 being sleeved or snapped together, and the third casing 130 and the first casing
  • the first casing 100 , the second casing 120 and the third casing 130 together form a sealed cavity.
  • the sealing chamber is arranged independently of the smoke chamber.
  • the electrical connection plate 600 is provided with a through hole 610 , and the electrical connection plate 600 is sleeved on the sealing structure 140 through the through hole 610 to fix the electrical connection plate 600 on the casing 100 .
  • the independent setting of the smoke chamber and the sealing chamber can be realized while ensuring the function of the air flow channel, so as to avoid the entry of particles in the external air, reduce the loss of the electrical connection board, and thus prolong the smoke Stability of the sensing device.
  • the above-mentioned smoke sensing device further includes a light collecting component 900 .
  • the light collecting part 900 is covered on the receiving part 500 , wherein the light collecting part 900 is used to guide the detection light refracted by the external gas in the smoke chamber into the receiving part 500 .
  • the light-condensing member 900 may adopt a structure such as a convex lens with a light-adjusting function.
  • the light-concentrating component 900 When the light-concentrating component 900 is arranged at the receiving end, the light-concentrating component 900 can gather the light diffused by the smoke particles to increase the light intensity per unit space, thereby ensuring sufficient light intensity entering the receiving end, which can ensure the response sensitivity and stability. sex.
  • the light condensing component 900 includes a converging surface.
  • the converging surface is an inclined surface covering the upper part of the receiving part 500.
  • the converging surface is used for receiving and collecting the detection light refracted by the external gas in the smoke chamber.
  • the above-mentioned smoke sensing device has a simple structure and a good light-focusing effect.
  • a plurality of optical traps 1000 are provided, and are provided around the light guide assembly 400 .
  • the probability of the detection light entering the optical trap 1000 is significantly improved, and the light entering the receiving component 500 is correspondingly reduced. , so that the probability of the receiving component 500 being triggered by mistake is further reduced, and further, the reliability of the smoke sensing device is further improved.
  • the optical trap 1000 includes a first trap 1010 , a second trap 1020 , a third trap 1030 , a fourth trap 1040 , a fifth trap 1050 , a sixth trap 1060 and a seventh trap 1070 .
  • the first trap 1010 , the second trap 1020 , the third trap 1030 and the fourth trap 1040 are optical traps distributed in the four top corners of the first housing 110 for absorbing light entering from outside the housing 100 , thereby preventing light Entering from the outside of the housing 100 prevents external light from entering the smoke chamber and improves the detection accuracy of the smoke sensing device.
  • the fifth traps 1050 are hook-shaped baffles symmetrically distributed on both sides of the emitting part 300 , the first air inlet 210 and the receiving part 500 , and are used to absorb the detection light directed to the front and rear walls of the first housing 110 .
  • the seventh trap 1070 is a guide plate provided on the receiving part 500 away from the transmitting part 300 .
  • the sixth traps 1060 are hook-shaped baffles symmetrically distributed on both sides of the seventh trap 1070 and disposed on the side of the receiving part 500 away from the transmitting part 300 .
  • the sixth trap 1060 cooperates with the seventh trap 1070 to absorb the detection light directed to the right wall of the first housing 110, so as to prevent the detection light from being received by the receiving component 500, and improve the detection accuracy of the smoke sensing device.
  • the above-mentioned smoke sensing apparatus further includes a noise reduction rib 1400 .
  • the noise reduction ribs 1400 extend from the front wall, rear wall and right wall of the first housing 110 to the airflow channel to prevent the surrounding walls from refracting the detection light to the receiving part, so as to reduce the noise floor of the smoke sensing device and improve the fogging effect. Accuracy of the sensing device.

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  • Analytical Chemistry (AREA)
  • Business, Economics & Management (AREA)
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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Detection Mechanisms (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

本申请涉及一种烟雾传感装置，包括：外壳，内部形成烟雾腔，烟雾腔内设有光学陷阱；气流通道，贯穿外壳侧壁，以供外部气体进出烟雾腔；发射部件，为贴片式结构，设于烟雾腔，用于发射探测光线；导光组件，设于烟雾腔，并覆设于发射部件，以调整探测光线的传播方向；接收部件，为贴片式结构，设于烟雾腔，用于接收烟雾腔中被外部气体折射的探测光线；电连接板，设置于外壳，并分别与发射部件和接收部件相连，用于为发射部件供电，并将接收部件生成的光电流向外导出。

Description

烟雾传感装置
相关申请的交叉引用
本申请要求于2020年11月11日提交中国专利局、申请号为2020112540561的中国专利申请以及于2020年11月11日提交中国专利局、申请号为2020225953322的中国专利申请的优先权，所述专利申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及感应监测技术领域，特别是涉及一种烟雾传感装置。
背景技术
火灾容易发生在通风不畅的环境中，而设置烟雾传感器可以有效预警火灾，及时提醒人员逃离及做出预防应急措施，减少火灾发生机率，减少生命安全及其财产损失。烟雾传感装置应用广泛，其结构主要包括检测室及设于检测室内的发光部件和受光部件。在正常情况下，受光部件接收到的由发光部件发出的光线的强度很小，因而不产生光电流，进而不会触发警报。在发生火灾时，当外部空气中的烟雾进入检测室时，由于烟雾颗粒的作用，发光器件发射的大部分光线产生漫射并被受光部件接收，因此受光部件的阻抗改变并产生光电流，从而将烟雾信号转变为光电信号，进而控制器根据收到的光电信号发出警信号。
然而，现有的烟雾传感装置均使用插接式的发光部件和受光部件，发光部件和受光部件为普通二极管，因此目前的烟雾传感装置均为非车规级烟雾传感器，无法满足车规级要求。
发明内容
根据本申请的各种实施例，提供一种满足车规级器件的发光部件和受光部件，以提高烟雾传感装置的安全指数，使得烟雾传感装置达到汽车领域的安全要求。
一种烟雾传感装置，包括：
外壳，所述外壳内部形成烟雾腔，所述烟雾腔内设有光学陷阱；
气流通道，所述气流通道贯穿所述外壳侧壁，以供外部气体进出所述烟雾腔；
发射部件，所述发射部件为贴片式结构，设于所述烟雾腔，用于发射探测光线；
导光组件，所述导光组件设于所述烟雾腔，并覆设于所述发射部件，以调整所述探测光线 的传播方向；
接收部件，所述接收部件为贴片式结构，设于所述烟雾腔，用于接收所述烟雾腔中被所述外部气体折射的所述探测光线；
电连接板，所述电连接板设置于所述外壳，并分别与所述发射部件和所述接收部件相连，用于为所述发射部件供电，并将所述接收部件生成的光电流向外导出。
在其中一个实施例中，所述电连接板与所述外壳在所述烟雾腔内形成连通的发射腔和接收腔。所述发射部件位于所述发射腔内并贴设于所述电连接板，所述接收部件位于所述接收腔内并贴设于所述电连接板。
在其中一个实施例中，所述导光组件包括：
折射部，所述折射部包括接收面和折射面，所述接收面覆设于所述发射部件，用于接收所述探测光线，所述折射面设于所述接收面上方，用于折射所述探测光线；
准直部，所述准直部设于所述折射部的一侧，用于调整折射后的所述探测光线的平行度。
在其中一个实施例中，所述外壳包括：
第一壳体；
第二壳体，所述第二壳体与所述第一壳体共同形成所述烟雾腔，所述电连接板设于所述第二壳体远离所述第一壳体的一侧。
在其中一个实施例中，所述烟雾传感装置还包括第一固定部件。所述第一固定部件由所述第二壳体向所述第一壳体延伸，形成用于卡接所述导光组件的插槽。
在其中一个实施例中，所述烟雾传感装置还包括第二固定部件。所述第二固定部件与所述第一固定部件配合连接以形成用于容置所述导光组件的容置腔。
在其中一个实施例中，所述外壳还包括：
第三壳体，所述第三壳体设于所述电连接板远离所述第二壳体的一侧，并与所述第一壳体、所述第二壳体共同形成用于容置所述电连接板的密封腔。
在其中一个实施例中，所述第一壳体设有第一进气孔，所述第二壳体设有第二进气孔、所述第三壳体设有第三进气孔。所述第一进气孔、所述第二进气孔和所述第三进气孔位置相对从而形成所述气流通道。
在其中一个实施例中，所述外壳还包括密封结构，所述密封结构包括相互套接的第一外翻部和第三外翻部。其中，所述第一外翻部由所述第二进气孔处向所述第三壳体延伸，所述第三外翻部由所述第三进气孔向所述第二壳体延伸。
在其中一个实施例中，所述电连接板通过其上设置的通孔套设于所述密封结构上，以将所述电连接板固定于所述外壳上。
在其中一个实施例中，所述密封腔独立于所述烟雾腔设置。
在其中一个实施例中，所述烟雾传感装置还包括聚光部件。所述聚光部件覆设于所述接收部件，用于将被所述外部气体折射的所述探测光线导入所述接收部件。
在其中一个实施例中，所述光学陷阱有多个，设于所述导光组件的周围。
在其中一个实施例中，所述烟雾传感装置还包括降噪筋位。所述降噪筋位从所述外壳的前壁、后壁及右壁向所述气流通道延伸，以防止周围壁面将所述探测光线折射至所述接收部件。
上述烟雾传感装置中，将发射部件和接收部件设置为贴片式结构，由于贴片式结构具有高亮度、反应快、防震、节能、高解析度、耐震的优势，使得烟雾传感装置可达到汽车领域的安全要求，进而使得烟雾传感装置满足车规级需求。同时，由于通过导光组件调整发射部件发出的探测光线的传播方向，可便于贴片式的发射部件和接收部件的安装，而无需考虑发射部件和接收部件的安装角度，这保证了在正常情况下探测光线大部分进入到光学陷阱内部，而不会被接收部件接收，而在火灾情况下大部分探测光线则能够被接收部件接收。在火灾情况下，大部分探测光线进入接收部件，可保证接收部件的报警准确率，进而提高烟雾装置的可靠性。
对于本申请的各种具体结构及其作用与效果，将在下面结合附图作出进一步详细的说明。
附图说明
图1为本申请其中一个实施例中烟雾传感装置的爆炸图；
图2为本申请其中一个实施例中烟雾传感装置的部分组装图；
图3为图2中第一部分A沿M-M剖面的剖视图；
图4为图2中第二部分B沿M-M剖面的剖视图；
图5为图2中第三部分C沿M-M剖面的剖视图；
图6为图2中第四部分D沿M-M剖面的剖视图；
图7为本申请其中一个实施例中烟雾传感装置的剖视图，其中外部空气中不含有烟雾颗粒；
图8为本申请其中一个实施例中烟雾传感装置的剖视图，其中外部空气中包含有烟雾颗粒；
图9为本申请其中一个实施例中第一壳体的仰视图。
具体实施方式
为使本申请的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本申请。但是本申请能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本申请内涵的情况下做类似改进，因此本申请不受下面公开的具体实施例的限制。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
在其中一个实施例中，参阅图1和图7，一种烟雾传感装置包括外壳100、气流通道200、 发射部件300、导光组件400、接收部件500和电连接板600。其中，发射部件300和接收部件500均为贴片式结构。外壳100内部形成烟雾腔(未标示)。烟雾腔内设有光学陷阱1000，气流通道200贯穿外壳侧壁，以供外部气体进出烟雾腔。发射部件300、导光组件400和接收部件500设于烟雾腔。发射部件300和接收部件500贴附于烟雾腔的侧壁上。电连接板600通过连接螺栓1300设置于外壳100，并分别与发射部件300和接收部件500相连。电连接板600与发射部件300接收部件500分别相连，并覆设于发射部件300。发射部件300用于发射探测光线。导光组件400用于调整探测光线的传播方向。接收部件500用于接收烟雾腔中被外部气体折射的探测光线并生成光电流。电连接板600用于为发射部件300供电，并将接收部件500生成的光电流向外导出。在外部气体中没有烟雾颗粒的状态下，平行状的探测光线无法被接收部件500接收，而在外部气体中包含有烟雾颗粒的状态下，平行状的探测光线在烟雾颗粒的作用下，改变传播方向，能够被接收部件500接收。具体的，电连接板600为PCBA板。
具体的，参阅图7，在没有发生火灾的情况下，外部空气中没有烟雾颗粒，则烟雾腔内没有烟雾颗粒。由于接收部件500的接收端不在发射部件300的发射光线所直接到达的平面上，从发射部件300发出的光线接触到外壳100的没有烟雾颗粒的内壁并被反射发散形成向四周投射的若干探测光线(如图7中箭头的指向)，因此探测光线中的绝大部分进入到光学陷阱1000内部，而进入接收部件500的探射光线很少，从而避免了接收部件500被触发，有效提高了烟雾传感装置工作的可靠性。而在发生火灾时，参阅图8，外部空气中包含烟雾颗粒，则烟雾腔内含有烟雾颗粒，烟雾颗粒经气流通道200进入烟雾腔，由于发射部件300设于气流通道的周围且发射部件300的发射端指向气流通道，因此发射部件300发射的探测光线(如图8中箭头的指向)与烟雾颗粒(如图8中的实心圆点)相碰撞而向周围发生漫射。由于接收部件500设于气流通道200的周围，探测光线被接收部件500接收，接收部件500的阻抗发生变化而产生光电流，从而实现了将烟雾信号转变为电信号、光电流经电连接板600向外导出至外设的控制器。控制器接收到光电流后与内部预设阈值进行比较。当光电流超出阈值时，控制器判断烟雾浓度较大并向消防部门发出报警信号。消防部门收到报警信号后可以及时处置。
在发生火灾时，由于发射部件300设于气流通道的周围且发射部件300的发射端指向气流通道，因此发射部件300发射的探测光基本都会与烟粒子相接触，这增强了探测光的漫射效果。此外，由于接收部件500设于气流通道的周围且接收端指向气流通道，漫射的探测光被接收部件500大量接收，接收部件500的阻抗发生明显变化产生较大的光电流，光电流很容易超出阈值并触发报警，这提升了反应灵敏度，使得消防部门能在火情发生的初始阶段及时知晓并处置， 提升了灭火减灾效率，降低了对人民的生命财产安全带来的隐患。
为了提高光电流传递的准确性，参阅图1，在其中一个实施例中，上述烟雾传感装置中还包括屏蔽罩1200，用于屏蔽外界信号对光电流的影响。
上述烟雾传感装置中，将发射部件和接收部件设置为贴片式结构。由于贴片式结构具有高亮度、反应快、防震、节能、高解析度、耐震的优势，因此可使得烟雾传感装置达到汽车领域的安全要求，进而使得烟雾传感装置满足车规级需求。同时，由于通过导光组件调整发射部件发出的探测光线的传播方向，便于贴片式的发射部件和接收部件的安装，无需考虑发射部件和接收部件的安装角度，从而保证在正常情况下探测光线大部分进入到光学陷阱内部，不会被接收部件接收，而在火灾情况下大部分探测光线则能够被接收部件接收。在火灾情况下，大部分探测光线进入接收部件，可保证接收部件的报警准确率，进而提高烟雾装置的可靠性。
具体的，从发射部件300发出的光线接触到外壳100的内壁并被反射发散形成与接收部件500接收端平行的若干探测光线，大部分探测光线可进入到光学陷阱1000内部，并被光学陷阱1000吸收。
在其中一个实施例中，光学陷阱和外壳一体注塑而成，以简化上述烟雾传感装置制作工艺和安装步骤。
在其中一个实施例中，参阅图4，上述烟雾传感装置中，电连接板600与外壳100共同形成与烟雾腔连通的发射腔121和接收腔122。其中，发射部件300位于发射腔121内并贴设于电连接板600，接收部件500位于接收腔122内并贴设于电连接板600。
在其中一个具体的实施例中，发射部件300包括贴片式发光二极管，且贴片式发光二极管贴设至烟雾腔的侧壁。其中，贴片式发光二极管具有体积小、耗电量低、使用寿命长、高亮度、环保、坚固耐用牢靠、适合量产、反应快，防震、节能、高解析度、耐震、可设计等优点。
在其中一个实施例中，接收部件500包括贴片式光敏接收管，贴片式光敏接收管可接收到贴片式发光二极管发出的探测光线并产生光电流。可以理解的是，发射部件300、接收部件500可根据需要设置为两个及两个以上，本申请中发射部件300和接收部件500的数量不作具体限制。
上述烟雾传感装置，将发射部件置于发射腔内，及将接收部件置于接收腔内，同时将发射部件和接收部件分别贴设于电连接板上，使得发射部件和接收部件的安装过程简单、安装稳定性较高，同时降低了对安装面的需求，降低了烟雾传感装置成型难度和加工难度。
在其中一个实施例中，参阅图4，导光组件400包括折射部410和准直部420。其中，折 射部410包括接收面411和折射面412。接收面411覆设于发射部件300。折射面412相对于接收面411倾斜设置并设于接收面411上方。准直部420设于折射部410的一侧。接收面411用于接收探测光线，折射面412用于折射探测光线。准直部420用于调整折射后的探测光线的平行度。在其中一个实施例中，接收面411包覆发射部件300，以增大折射部410接收到的探测光线的强度。准直部420为半圆光路准直结构。
上述烟雾传感装置的导光组件包括折射部和准直部，改善了探测光线的传播方向，进而提高了烟雾传感装置的感应的灵敏度和稳定性。
在其中一个实施例中，参阅图1，外壳100包括第一壳体110和第二壳体120。其中，第一壳体110与第二壳体120共同形成烟雾腔。电连接板600设于第二壳体120远离第一壳体110的一侧，也即电连接板600设于烟雾腔的外部。发射部件300穿过第二壳体120与电连接板600相连，及接收部件500穿过第二壳体120与电连接板600相连。在上述烟雾传感装置中，第一壳体和第二壳体结构简单，安装方便。
为了便于烟雾传感器的固定，在其中一个实施例中，外壳100的表面设有加强筋(未标示)和固定孔(未标示)。其中，加强筋能够提升外壳100的强度，固定孔方便利用紧固件将烟雾传感装置件安装到墙体或交通工具上。
在其中一个实施例中，参阅图1，外壳100还包括第三壳体130。其中，第三壳体130设于电连接板600远离第二壳体120的一侧，并且第一壳体110、第二壳体120与第三壳体130共同形成用于容置电连接板600的密封腔(未标示)。在上述烟雾传感装置中，第三壳体可以对电连接板提供保护，避免电连接板直接暴露于外部受损伤，延长了烟雾传感装置的使用寿命。
在其中一个实施例中，第三壳体130朝向电连接板600的一侧表面设有定位部(未标示)。定位部与电连接板600上的定位孔(未标示)配合，以限制第三壳体130和电连接板600的相对移动，防止第三壳体130与电连接板600发生相对平移晃动。
在其中一个实施例中，第三壳体130与第一壳体110之间设有卡接结构。第三壳体130与第一壳体110通过卡接结构卡合。具体的，卡接结构包括卡槽111和卡爪131。其中，卡槽111设于第一壳体110，卡爪131设于第三壳体130。卡爪131扣接至卡槽111内，以卡接第一壳体110与第三壳体130。上述烟雾传感装置，通过卡接的方式方便了第三壳体与第一壳体的快速安装拆卸，方便了装配和维护，降低了操作难度，损坏后直接拆卸并替换所需零件，节约了成本。
在其中一个实施例中，上述烟雾传感装置还包括供电连接部件1100。其中，供电连接部 件1100与电连接板600相连，用于与外接电源相连以为发射部件300供电。具体的，外接电源与供电连接部件1100连接后，可将电流输入电连接板600为发射部件300供电。具体的，供电连接部件1100为PIN针。
在另一个实施例中，电连接板600上安装有电池，直接通过电池为发射部件300供电。
在其中一个实施例中，参阅图4和图7，上述烟雾传感装置还包括第一固定部件700。其中，第一固定部件700由第二壳体120向第一壳体110延伸，形成用于卡接导光组件400的插槽(未标示)。具体的，导光组件400卡接至插槽内，以将导光组件400固定于第二壳体120上。
在另一个实施例中，导光组件400固定于第一壳体110上。
上述烟雾传感装置，卡接后可以增强发射部件、接收部件的位置稳定性，避免使用时发生晃动，并且方便部件的快速拆卸更换。
在其中一个实施例中，参阅图4和图7，上述烟雾传感装置还包括第二固定部件800。其中，第一固定部件700和第二固定部件800配合连接以形成用于容置导光组件400的容置腔(未标示)。具体的，第一固定部件700抵接至导光组件400的下部的表面，第二固定部件800抵接至导光组件400的上部的表面。由此，第一固定部件700和第二固定部件800配合连接时，可将导光组件400固定在由第一固定部件700和第二固定部件800形成的容置腔中。
在其中一个实施例中，第一固定部件700和第二固定部件800之间还设有锁止结构(未标示)。锁止结构用于限制第一固定部件700和第二固定部件800之间的相对移动。其中，锁止结构包括锁止孔和锁止块，其中，锁止孔设于第二固定部件800，锁止块设于第一固定部件700。第一固定部件700的锁止块可插设于第二固定部件800的锁止孔中，以将导光组件400固定在由第一固定部件700和第二固定部件800形成的容置腔中。
在另一个实施例中，锁止结构包括锁止孔和锁止块，其中，锁止孔设于第一固定部件700，锁止块设于第二固定部件800。
上述烟雾传感装置，通过设置第二固定部件，进而通过第一固定部件和第二固定部件的配合，限制了导光组件的位置，防止使用过程中导光组件的相对移动，提高上述烟雾传感装置的稳定性。
在其中一个实施例中，上述外壳中，参阅图3、图4、图6和图7，第一壳体110设有第一进气孔210，第二壳体120设有第二进气孔220，第三壳体130设有第三进气孔230。第一进气孔210、第二进气孔220和第三进气孔230位置相对从而形成气流通道200。具体的，外 部空气中的烟雾颗粒可通过第一进气孔210进入并依次穿过第二壳体120、电连接板600和第三进气孔230，从而形成贯通第一壳体110、第二壳体120和第三壳体130的气流通道200。
上述烟雾传感装置，通过依次设置且彼此相对的第一进气孔、第二进气孔和第三进气孔形成气流通道，不需要在烟雾传感装置件内部单独安装实体气流通道，结构较为简洁，制造更方便容易；且由于气流通道并非实体，不会影响烟粒子对探测光线的正常漫射，以及接收部件对形成的漫射光的正常接收。
进一步地，第一壳体110上的第一进气孔210及第三壳体130的上设有格挡(未标示)。其中，格挡用于阻挡大颗粒结构进入，保证烟雾传感装置的正常运行使用。进一步的，格挡的间距为1.3mm，间距过大不能起到阻挡的作用，间距过小会影响烟气的进入，因而选择格挡的间距为1.3mm，采用该尺寸能达到最好的效果。
在其中一个实施例中，上述烟雾传感其中，参阅图4、图6和图7，外壳100还包括密封结构140。具体的，密封结构140包括相互套接或相互卡接的第一外翻部141和第三外翻部142。其中，第一外翻部141由第二进气孔220处向第三壳体130延伸，第三外翻部142从第三壳体130的第三进气孔230向第二壳体120延伸。当第三壳体130与第二壳体120通过第三外翻部142与第一外翻部141相互套接或相互卡接而卡合在一起，并且第三壳体130与第一壳体110通过卡接结构卡合时，第一壳体100、第二壳体120和第三壳体130共同形成密封腔。密封腔独立于烟雾腔设置。
在其中一个实施例中，参阅图5，电连接板600上设有通孔610，且电连接板600通过通孔610套设于密封结构140上，以将电连接板600固定于外壳100上。
在上述烟雾传感装置中，通过设置密封结构，可在保证气流通道功能下，实现烟雾腔和密封腔的独立设置，避免外部空气中的颗粒进入，降低对电连接板的损耗，进而延长烟雾传感装置的稳定性。
为了提高烟雾传感装置的反应灵敏度和稳定性，在其中一个实施例中，参阅图4和图7，上述烟雾传感装置还包括聚光部件900。聚光部件900覆设于接收部件500，其中，聚光部件900用于将被烟雾腔内的外部气体折射的探测光线导入接收部件500。具体的，聚光部件900可以采用具有调光功能的凸透镜等结构。将聚光部件900设于接收端时，聚光部件900能够将烟尘粒子漫射的光线汇聚起来提升单位空间的光强，从而保证了进入到接收端的光线强度足够，这可以保证反应灵敏度和稳定性。
在其中一个实施例中，上述烟雾传感装置中，聚光部件900包括汇聚面。具体的，汇聚面 为覆设于接收部件500上方的倾斜面。汇聚面用于接收并聚集烟雾腔内的由外部气体所折射的探测光线。上述烟雾传感装置，结构简单，聚光效果良好。
在其中一个实施例中，参阅图3、图7和图8，光学陷阱1000设置有多个，并设于导光组件400的周围。具体的，在外部空气中不包含烟雾颗粒时，由于多个光学陷阱1000围绕导光组件400分布设置，显著提升了探测光线进入到光学陷阱1000内部的概率，相应降低了进入接收部件500的光线，使得接收部件500被误触发的概率进一步降低，进而，进一步提升烟雾传感装置的可靠性。
在其中一个实施例中，参阅图9，光学陷阱1000包括第一陷阱1010、第二陷阱1020、第三陷阱1030、第四陷阱1040、第五陷阱1050、第六陷阱1060和第七陷阱1070。第一陷阱1010、第二陷阱1020、第三陷阱1030和第四陷阱1040为分布于第一壳体110四个顶角内的光学陷阱，用于吸收从外壳100外部进入的光线，从而防止光线从外壳100外部进入，避免外部光线进入烟雾腔，提高烟雾传感装置的检测精度。第五陷阱1050为对称分布在发射部件300、第一进气孔210和接收部件500两侧的钩形挡板，用于吸收指向第一壳体110前壁和后壁的探测光线。第七陷阱1070为设于接收部件500远离发射部件300的引导板。第六陷阱1060为对称分布在第七陷阱1070的两侧并设于接收部件500远离发射部件300一侧的钩形挡板。第六陷阱1060和第七陷阱1070配合，吸收指向第一壳体110右壁的探测光线，避免探测光线被接收部件500接收，提高烟雾传感装置的检测精度。
为了进一步提高上述烟雾传感装置的准确性，在其中一个实施例中，参阅图9，上述烟雾传感装置还包括降噪筋位1400。其中，降噪筋位1400从第一壳体110的前壁、后壁及右壁向气流通道延伸，防止周围壁面将探测光线折射至接收部件，以降低烟雾传感装置的底噪，提高雾传感装置的准确性。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (14)

  1. 一种烟雾传感装置，其特征在于，包括：
    外壳，所述外壳内部形成烟雾腔，所述烟雾腔内设有光学陷阱；
    气流通道，所述气流通道贯穿所述外壳侧壁，以供外部气体进出所述烟雾腔；
    发射部件，所述发射部件为贴片式结构，设于所述烟雾腔，用于发射探测光线；
    导光组件，所述导光组件设于所述烟雾腔，并覆设于所述发射部件，以调整所述探测光线的传播方向；
    接收部件，所述接收部件为贴片式结构，设于所述烟雾腔，用于接收所述烟雾腔中被所述外部气体折射的所述探测光线；
    电连接板，所述电连接板设置于所述外壳，并分别与所述发射部件和所述接收部件相连，用于为所述发射部件供电，并将所述接收部件生成的光电流向外导出。
  2. 根据权利要求1所述的烟雾传感装置，其特征在于，所述电连接板与所述外壳在所述烟雾腔内形成连通的发射腔和接收腔；所述发射部件位于所述发射腔内并贴设于所述电连接板，所述接收部件位于所述接收腔内并贴设于所述电连接板。
  3. 根据权利要求1所述的烟雾传感装置，其特征在于，所述导光组件包括：
    折射部，所述折射部包括接收面和折射面，所述接收面覆设于所述发射部件，用于接收所述探测光线，所述折射面设于所述接收面上方，用于折射所述探测光线；
    准直部，所述准直部设于所述折射部的一侧，用于调整折射后的所述探测光线的平行度。
  4. 根据权利要求1所述的烟雾传感装置，其特征在于，所述外壳包括：
    第一壳体；
    第二壳体，所述第二壳体与所述第一壳体共同形成所述烟雾腔，所述电连接板设于所述第二壳体远离所述第一壳体的一侧。
  5. 根据权利要求4所述的烟雾传感装置，其特征在于，所述烟雾传感装置还包括第一固定部件，所述第一固定部件由所述第二壳体向所述第一壳体延伸，形成用于卡接所述导光组件的插槽。
  6. 根据权利要求5所述的烟雾传感装置，其特征在于，所述烟雾传感装置还包括第二固定部件，所述第二固定部件与所述第一固定部件配合连接以形成用于容置所述导光组件的容置腔。
  7. 根据权利要求4所述的烟雾传感装置，其特征在于，所述外壳还包括：
    第三壳体，所述第三壳体设于所述电连接板远离所述第二壳体的一侧，并与所述第一壳体、所述第二壳体共同形成用于容置所述电连接板的密封腔。
  8. 根据权利要求7所述的烟雾传感装置，其特征在于，所述第一壳体设有第一进气孔，所述第二壳体设有第二进气孔、所述第三壳体设有第三进气孔，所述第一进气孔、所述第二进气孔和所述第三进气孔位置相对从而形成所述气流通道。
  9. 根据权利要求8所述的烟雾传感装置，其特征在于，所述外壳还包括密封结构，所述密封结构包括相互套接的第一外翻部和第三外翻部；其中，所述第一外翻部由所述第二进气孔处向所述第三壳体延伸，所述第三外翻部由所述第三进气孔向所述第二壳体延伸。
  10. 根据权利要求9所述的烟雾传感装置，其特征在于，所述电连接板通过其上设置的通孔套设于所述密封结构上，以将所述电连接板固定于所述外壳上。
  11. 根据权利要求7所述的烟雾传感装置，其特征在于，所述密封腔独立于所述烟雾腔设置。
  12. 根据权利要求1所述的烟雾传感装置，其特征在于，所述烟雾传感装置还包括聚光部件，所述聚光部件覆设于所述接收部件，用于将被所述外部气体折射的所述探测光线导入所述接收部件。
  13. 根据权利要求1所述的烟雾传感装置，其特征在于，所述光学陷阱有多个，设于所述导光组件的周围。
  14. 根据权利要求1所述的烟雾传感装置，其特征在于，所述烟雾传感装置还包括降噪筋位，所述降噪筋位从所述外壳的前壁、后壁及右壁向所述气流通道延伸，以防止周围壁面将所述探测光线折射至所述接收部件。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001134860A (ja) * 1999-11-01 2001-05-18 Hochiki Corp 感知器取付ベース
CN110632030A (zh) * 2019-10-21 2019-12-31 北京国泰怡安电子有限公司 黑烟白烟同一灵敏度的点型光电感烟探测器及其探测方法
JP2020067920A (ja) * 2018-10-25 2020-04-30 能美防災株式会社 煙感知器
CN112233367A (zh) * 2020-11-11 2021-01-15 哲弗智能系统（上海）有限公司 烟雾传感装置
CN213458357U (zh) * 2020-11-11 2021-06-15 哲弗智能系统（上海）有限公司 烟雾传感装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001134860A (ja) * 1999-11-01 2001-05-18 Hochiki Corp 感知器取付ベース
JP2020067920A (ja) * 2018-10-25 2020-04-30 能美防災株式会社 煙感知器
CN110632030A (zh) * 2019-10-21 2019-12-31 北京国泰怡安电子有限公司 黑烟白烟同一灵敏度的点型光电感烟探测器及其探测方法
CN112233367A (zh) * 2020-11-11 2021-01-15 哲弗智能系统（上海）有限公司 烟雾传感装置
CN213458357U (zh) * 2020-11-11 2021-06-15 哲弗智能系统（上海）有限公司 烟雾传感装置

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