CN112669559B - Fire detector for electric appliance - Google Patents

Fire detector for electric appliance Download PDF

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Publication number
CN112669559B
CN112669559B CN202011482710.4A CN202011482710A CN112669559B CN 112669559 B CN112669559 B CN 112669559B CN 202011482710 A CN202011482710 A CN 202011482710A CN 112669559 B CN112669559 B CN 112669559B
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cavity
shell
mounting
cylinder
barrel
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CN112669559A (en
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江世军
李修连
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Hunan Small Quick Smart Electroniic Technology Co ltd
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Hunan Small Quick Smart Electroniic Technology Co ltd
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Abstract

The invention discloses an electrical appliance fire detector, belonging to the technical field of monitoring detectors, comprising a mounting support block, a shell, an alarm device and a smoke sensor probe which are arranged in the shell, the outer side wall of the lower end of the mounting support block is provided with an external thread, a cylindrical cavity is coaxially arranged in the shell, the shell is a circular truncated cone, and the big end of the hollow cavity is coaxially and threadedly connected with the lower end of the mounting support block through the internal thread at the upper end of the hollow cavity, the small end of the smoke sensor probe is coaxially and fixedly connected with a connecting cylinder, the upper part of the cavity is provided with an alarm device, the smoke sensor probe is positioned at the lower part of the cavity of the shell, the outer circumferential surface of the connecting cylinder is provided with an annular bulge, a cylinder body with a closed lower end is coaxially sleeved outside the connecting cylinder and is rotatably arranged on the connecting cylinder, the fan assembly is fixedly arranged in the cylinder, and the problems that dust is easily adsorbed and a fire disaster is not monitored timely in the conventional electrical appliance fire detector are solved.

Description

Fire detector for electric appliance
Technical Field
The invention belongs to the technical field of monitoring detectors, and particularly relates to an electrical appliance fire detector.
Background
With the continuous progress of society, the types of electronic products are more and more, and as household appliances are increased, the load of a power line is increased, so that the original power line is overloaded to work, and a plurality of household appliances are caused by the fact that a fire breaks away from safe operation regulations. The fire detector for the electric appliance can extinguish the electric appliance when the electric appliance is just on fire, which effectively prevents more serious consequences, so that the fire detector for the electric appliance plays an important role in preventing fire for the electric appliance used in a household.
The existing electrical appliance fire detector is arranged at the top of a room, dust exists in the device due to long-time exposure in the air, the service life of the device is shortened due to the existence of the dust, and meanwhile, the detection sensitivity of a smoke sensor probe in the detector is reduced; under the condition that just has a fire in the house, the intensity of a fire is unobvious, the smog of production is less, and the speed that smog flows in the air can be very slow, consequently electric appliance fire detector monitoring conflagration is untimely when the intensity of a fire is less, can not play in time not only can not remind the owner condition of having a fire in advance for the owner can not put out the fire as early as possible, thereby the intensity of a fire increase threatens owner's life and property safety and can cause huge threat to neighbor's the lives and property under the serious condition.
Disclosure of Invention
The invention aims to: the utility model provides an electrical apparatus fire detector, solved traditional electrical apparatus fire detector easily adsorb the dust and monitor the untimely problem of conflagration.
The technical scheme adopted by the invention is as follows:
the electrical appliance fire detector comprises an installation supporting block, a shell, an alarm device and a smoke sensor probe, wherein the alarm device and the smoke sensor probe are arranged in the shell, the outer side wall of the lower end of the installation supporting block is provided with an external thread, a cylindrical cavity is coaxially arranged in the shell, the shell is a round table, the large end of the shell is coaxially connected with the lower end of the installation supporting block through an internal thread at the upper end of the cavity in a threaded manner, the small end of the shell is coaxially and fixedly connected with a connecting cylinder, the alarm device is arranged at the upper part of the cavity, the smoke sensor probe is positioned at the lower part of the cavity of the shell, a cylinder body with the lower end sealed is coaxially sleeved outside the connecting cylinder, the cylinder body is rotatably arranged on the connecting cylinder, and a fan assembly is fixedly arranged in the cylinder body;
the upper end surface of the shell is provided with a plurality of vent holes towards the direction of the cavity in the shell, and the vent holes are communicated with the cavity;
the fan assembly comprises a mounting plate, a fan, a partition plate, a connecting rod and a mounting frame, the upper end of the mounting plate is fixedly connected with the lower end face of the connecting cylinder, the lower end of the mounting plate is abutted against the bottom of the cylinder body, the front end and the rear end of the mounting plate are abutted against the inner side wall of the cylinder body, and the mounting plate divides the inner cavity of the cylinder body into a left cavity and a right cavity;
the lower end of the connecting rod is coaxially fixed with the cylinder, the upper end of the connecting rod sequentially penetrates through a through hole which is arranged in the middle of the mounting plate and is coaxial with the cylinder and then is fixedly connected with a partition plate above the mounting plate, the cross section of the partition plate is semicircular, the diameter of the partition plate is consistent with the inner diameter of the connecting cylinder, the outer circumferential surface of the partition plate is attached to the inner wall of the connecting cylinder, and the partition plate only covers the top of the right cavity;
mounting holes for mounting fans are formed in the two sides, located on the connecting rod, of the mounting plate, mounting frames are fixedly arranged inside the mounting holes, and the fans are mounted on the mounting frames;
a plurality of through holes are formed in the bottom of the barrel below the partition plate.
Furthermore, an installation clamping ring for placing an alarm device is fixedly arranged on the inner wall of the middle part of the cavity.
Furthermore, be equipped with annular protrusion on the outer periphery of connecting cylinder, the barrel is through the annular groove on its inner wall and the protruding normal running fit of annular of connecting cylinder for the barrel rotates to be installed on the connecting cylinder.
Furthermore, a filter screen for filtering dust is arranged inside the ventilation hole.
Furthermore, a plurality of sensor mounting grooves for mounting a wireless sensor are formed in the outer side of the shell along the circumferential direction of the axis of the shell, and the wireless sensor is a flame sensor.
Further, the sensor mounting groove is provided with 4.
Further, the diameter of the cavity of the shell is the same as that of the cavity inside the connecting cylinder.
Furthermore, the shell is made of antistatic ABS plastic.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, as the electrical appliance fire detector is exposed in the air for a long time, dust exists in the device, the service life of the device is shortened due to the existence of the dust, and the detection sensitivity of the smoke sensor probe in the detector is reduced, the device has a dust removal effect through the circular flow of the wind in the maintenance state, and the reduction of the service life of the fire detector due to the existence of the dust is avoided; meanwhile, the smoke sensor probe in the detector is cleaned, so that the detection sensitivity is reduced due to the fact that dust is attached to the smoke sensor probe, and the threat to the life and property of a homeowner caused by inaccurate detection and untimely alarm is effectively reduced.
2. In the invention, under the condition of just firing in a house, the fire is not obvious, the generated smoke is less, and the flow speed of the smoke in the air is very slow, so that an electric appliance fire detector cannot monitor the fire timely when the fire is less, under the monitoring state, the smoke in the air is sucked into the device by the suction force of a fan through the circulating flow of the wind, so that a smoke sensor probe arranged in the device is contacted with the smoke as early as possible, and an alarm device is triggered to give an alarm to remind a master of the fire as soon as possible, so that the master can put out a fire or give an alarm to seek help as soon as possible when the fire is less, and the serious life and property threats caused by the increase of the fire due to the failure of finding out dangerous situations in time are reduced; simultaneously, under the condition that does not have smog, the fan also can be with some dust in alarm device bottom and smoke transducer probe bottom upwards blow, outside some dust follow ventilation hole eduction gear, some can drop in the barrel bottom, still some float in casing cavity and connecting cylinder inner chamber, blow the dust in dead angles such as alarm device bottom and smoke transducer probe bottom that will not clear up well under the maintenance state, make the dust flow along with the inside air of device, the maintenance state of cooperation device, the effect of dust removal has further been increased.
3. In the invention, the fan can not completely bring the dust in the left cavity of the cylinder into the right cavity, and the dust in the right cavity can not completely pass through the through hole at the bottom to be discharged out of the device, so that the dust is deposited at the bottom of the cylinder.
4. According to the invention, the inner wall of the cavity is provided with the mounting clamp ring, so that an alarm device can be conveniently placed.
5. According to the invention, through the arrangement of the annular protrusion and the annular groove, the rotary connection structure of the cylinder body and the connecting cylinder is more specific, and the implementation of the rotary connection structure is convenient for the technicians in the field.
6. In an overhauling state, the device is ventilated to the inside through the vent hole, and a small amount of dust flowing in the air can be brought into the device, so that the filter screen is arranged in the vent hole, partial dust can be initially reduced to enter the device, the dust is reduced from the source, and the dust cleaning effect is improved.
7. According to the invention, the sensor mounting groove for mounting the wireless sensor is arranged on the outer side of the shell, the mounted flame sensor can further sense the indoor condition, when the flame sensor senses the indoor fire condition, a signal is transmitted to the alarm device to enable the alarm device to give an alarm, so that the fire condition of a householder is reminded, the householder takes measures of extinguishing fire or giving an alarm to seek help, and the life and property safety of the householder is further ensured.
8. The diameter of the cavity of the shell is the same as that of the cavity in the connecting cylinder, so that dust accumulation is reduced, the circulation of the air path is increased, and the dust cleaning effect is better.
9. The surface hardness of the plastic used as the shell plastic is lower, so that the plastic is easy to damage; in addition, the antistatic ABS plastic is an insulator, so that the antistatic ABS plastic is easy to be polluted by dust due to static electricity, is prepared by mixing ABS raw material serving as a base material and adding carbon fibers, carbon nano tubes, metal fibers, permanent antistatic master batches, IDP and the like, and has the functions of resisting static electricity, dissipating static electricity, preventing dust absorption, conducting electricity, shielding electromagnetic wave interference and the like. Therefore, the antistatic ABS plastic is used as the material of the shell, so that the dust adsorption in the device can be reduced in advance, and the subsequent ash removal fluency of the device is improved.
Drawings
FIG. 1 is a schematic view of the present invention in a service condition;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic view of the present invention in a monitoring state;
FIG. 4 is a top view of the internal structure of the cartridge;
fig. 5 is a schematic view of the shape of the separator.
The labels in the figure are: 1. mounting a supporting block; 2. a housing; 3. a sensor mounting groove; 4. an alarm device; 5. installing a snap ring; 6. a barrel; 7. a partition plate; 8. a through hole; 9. a connecting rod; 10. mounting a plate; 11. a vent hole; 12. a fan; 13. a mounting frame; 14. a connecting cylinder; 15. mounting holes; 16. a smoke sensor probe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The electrical appliance fire detector comprises an installation supporting block 1, a shell 2, an alarm device 4 and a smoke sensor probe 16, wherein the alarm device 4 and the smoke sensor probe 16 are both arranged in the shell 2, the outer side wall of the lower end of the installation supporting block 1 is provided with external threads, a cylindrical cavity is coaxially arranged in the shell 2, the shell 2 is a circular truncated cone, the large end of the shell is coaxially connected with the lower end of the installation supporting block 1 through internal threads at the upper end of the cavity in a threaded manner, the small end of the shell is coaxially and fixedly connected with a connecting cylinder 14, the alarm device 4 is arranged at the upper part of the cavity, the smoke sensor probe 16 is positioned at the lower part of the cavity of the shell 2, a cylinder body 6 with a closed lower end is coaxially sleeved outside the connecting cylinder 14, the cylinder body 6 is rotatably arranged on the connecting cylinder 14, and a fan assembly is fixedly arranged in the cylinder body 6;
a plurality of vent holes 11 are formed in the upper end surface of the shell 2 in the direction towards the cavity in the shell 2, and the vent holes 11 are communicated with the cavity;
the fan assembly comprises a mounting plate 10, a fan 12, a partition plate 7, a connecting rod 9 and a mounting frame 13, the upper end of the mounting plate 10 is fixedly connected with the lower end face of the connecting cylinder 14, the lower end of the mounting plate is abutted against the bottom of the cylinder body 6, the front end and the rear end of the mounting plate 10 are abutted against the inner side wall of the cylinder body 6, and the mounting plate 10 divides the inner cavity of the cylinder body 6 into a left cavity and a right cavity;
the lower end of the connecting rod 9 is coaxially fixed with the cylinder 6, the upper end of the connecting rod 9 sequentially penetrates through a through hole 8 which is arranged in the middle of the mounting plate 10 and is coaxial with the cylinder 6 and then is fixedly connected with a partition plate 7 above the mounting plate 10, the cross section of the partition plate 7 is semicircular, the diameter of the partition plate 7 is consistent with the inner diameter of the connecting cylinder 14, the outer circumferential surface of the partition plate 7 is attached to the inner wall of the connecting cylinder 14, and the partition plate 7 only covers the top of the right cavity;
mounting holes 15 for mounting fans 12 are formed in the two sides, located on the connecting rod 9, of the mounting plate 10, mounting frames 13 are fixedly arranged inside the mounting holes 15, and the fans 12 are mounted on the mounting frames 13;
a plurality of through holes 8 are arranged below the partition plate 7 and at the bottom of the cylinder 6.
In order to avoid reduction of the service life of the device and reduction of the sensitivity of a smoke sensor probe caused by dust accumulation, the device needs to be overhauled regularly by manpower to clean dust in the device, as shown in fig. 1, the wind direction of a fan 12 is from left to right, the direction shown by an arrow in the figure is the movement direction of wind in the detector, at the moment, the upper part of a right cavity of a cylinder 6 is sealed by a partition plate 7, a through hole 8 is positioned at the bottom of the cylinder 6 in the right cavity, after the fan 12 is opened, a vent hole 11 in the upper part of a shell 2 is used as an air inlet and enters the left cavity of the cylinder 6 through a cavity in the shell 2 and a cavity in a connecting cylinder 14, and the fan 12 sends wind into the right cavity of the cylinder 6, and the wind can only be discharged out of the device through the through hole 8 in the bottom of the right cavity due to the blocking effect of the partition plate 7; in this case, the wind entering through the ventilation holes 11 inside the device brings the dust inside the device out of the device, thereby functioning to remove dust from the alarm device 4, and since the smoke sensor probe 16 is located inside the device, the smoke sensor probe 16 is also functioning to clean.
In a monitoring state, as shown in fig. 3, the cylinder 6 is rotated 180 degrees clockwise, the connecting rod 9 fixedly connected with the bottom of the cylinder 6 drives the partition plate 7 at the upper end to rotate 180 degrees, at this time, the upper part of the left cavity of the cylinder 6 is sealed by the partition plate 7, the through hole 8 is located at the bottom of the cylinder 6 in the left cavity, because the position of the fan 12 is not changed, the wind direction of the fan 12 still goes from left to right, and wind can only flow from the left cavity of the cylinder 6 to the right cavity, in this state, the fan 12 sucks external air into the left cavity through the through hole 8 and flows to the right cavity, and then the external air is exhausted out of the device from the vent hole 11 above the shell 2 through the cavity of the connecting cylinder 14 and the inner cavity of the shell 2; in this case, the smoke flowing slowly from the outside can be sucked into the device as soon as possible, and when the smoke passes through the inner cavity of the housing 2, the smoke sensor probe 16 arranged in the inner cavity of the housing senses the smoke, so as to trigger the alarm device 4 to give an alarm.
The beneficial effect of this scheme does:
1. because the electrical appliance fire detector is exposed in the air for a long time, dust exists in the device, the service life of the device is shortened due to the existence of the dust, the detection sensitivity of the smoke sensor probe 16 in the detector is reduced, and the device has a dust removal effect due to the circulating flow of the wind in an overhauling state, so that the service life of the fire detector is prevented from being shortened due to the existence of the dust; meanwhile, the smoke sensor probe 16 in the detector is cleaned, so that the detection sensitivity is reduced due to the fact that dust is attached to the smoke sensor probe 16, and the threat to the life and property of a homeowner caused by inaccurate detection and untimely alarm is effectively reduced.
2. Under the condition of just firing in a house, the fire is not obvious, less smoke is generated, and the flow speed of the smoke in the air is very low, so that an electric appliance fire detector monitors the fire in a untimely manner when the fire is small, and the smoke in the air is sucked into the device by the suction force of the fan 12 through the circular flow of the wind in the monitoring state, so that the smoke sensor probe 16 arranged in the device is contacted with the smoke as early as possible, and the alarm device 4 is triggered to give an alarm to remind a master of the firing condition in the house as soon as possible, so that the master can put out a fire or give an alarm to seek help as soon as possible when the fire is small, and the serious threats to life and property caused by the fact that the fire is increased due to the fact that dangerous conditions cannot be found in time are reduced; meanwhile, under the condition of no smoke, the fan 12 can also blow part of dust at the bottom of the alarm device and the bottom of the smoke sensor probe 16 upwards, part of the dust is discharged out of the device through the vent holes 11, and part of the dust can fall at the bottom of the cylinder 6, and part of the dust floats in the cavity of the shell 2 and the inner cavity of the connecting cylinder 14, so that dust in dead angles such as the bottom of the alarm device, the bottom of the smoke sensor probe 16 and the like which are not well cleaned in the maintenance state is blown, the dust flows along with air in the device, the maintenance state of the device is matched, and the dust removal effect is further improved.
3. Because fan 12 can not be completely with the dust in the left chamber of barrel 6 bring into the right chamber, the dust in right chamber also can not be completely through the through-hole 8 eduction gear of bottom outside for the dust all deposits in the bottom of barrel 6, because the lower extreme of mounting panel 10 and the butt of barrel 6 bottom, at the in-process of rotating barrel 6, inside through-hole 8 was pushed with the dust of the left chamber of barrel 6 and right chamber bottom to mounting panel 10, consequently further cleared up the inside dust of device.
Example 2
On the basis of the embodiment 1, a mounting snap ring 5 for placing an alarm device 4 is fixedly arranged on the inner wall of the middle part of the cavity.
And a mounting snap ring 5 is arranged on the inner wall of the cavity, so that the alarm device 4 is conveniently placed.
Example 3
Furthermore, be equipped with annular protrusion on the outer periphery of connecting cylinder 14, barrel 6 is through the annular groove on its inner wall and the annular protrusion normal running fit of connecting cylinder 14 for barrel 6 rotates to be installed on connecting cylinder 14.
Through the arrangement of the annular protrusion and the annular groove, the rotary connection structure of the cylinder body 6 and the connecting cylinder 14 is more specific, and is convenient for the implementation of the technical personnel in the field.
Example 4
Further, a filter screen for filtering dust is arranged inside the ventilation hole 11.
Under the maintenance state, ventilate to the device inside through ventilation hole 11, can bring the dust that flows in a small amount of air into the device in, consequently set up the filter screen in the inside in ventilation hole 11, can tentatively reduce inside partial dust gets into the device, make the dust reduce in the source for the effect of clearance dust increases.
Example 5
Further, a plurality of sensor mounting grooves 3 for mounting a wireless sensor are arranged on the outer side of the shell 2 along the circumferential direction of the axis of the shell 2, and the wireless sensor is a flame sensor.
Further, the number of the sensor mounting grooves 3 is 4.
Set up the sensor mounting groove 3 that is used for installing wireless sensor in the outside of casing 2, the condition in the perception room that the flame sensor of installation can be further, when the fire condition in the flame sensor perception room, can give alarm device 4 with signal transmission and make alarm device 4 send out the police dispatch newspaper, reminded the condition that the householder was on fire, the householder takes the measure of putting out a fire or reporting to the police and seeking help, has further ensured the life and property safety of householder.
Example 6
Further, the diameter of the cavity of the housing 2 is the same as the diameter of the inner cavity of the connecting cylinder 14.
The diameter of the cavity of the shell 2 is the same as that of the cavity inside the connecting cylinder 14, so that dust accumulation is reduced, the circulation of the air path is increased, and the dust cleaning effect is better.
Example 7
Further, the material of the shell 2 is antistatic ABS plastic.
The surface hardness of the plastic used as the shell 2 is low, so that the plastic is easily damaged; in addition, the antistatic ABS plastic is an insulator, so that the antistatic ABS plastic is easy to be polluted by dust due to static electricity, is prepared by mixing ABS raw material serving as a base material and adding carbon fibers, carbon nano tubes, metal fibers, permanent antistatic master batches, IDP and the like, and has the functions of resisting static electricity, dissipating static electricity, preventing dust absorption, conducting electricity, shielding electromagnetic wave interference and the like. Therefore, the antistatic ABS plastic is used as the material of the shell 2, so that dust adsorption in the device can be reduced in advance, and the subsequent ash removal fluency of the device is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. An electrical appliance fire detector comprises an installation supporting block (1), a shell (2), and an alarm device (4) and a smoke sensor probe (16) which are arranged in the shell (2), and is characterized in that the outer side wall of the lower end of the installation supporting block (1) is provided with an external thread, a cylindrical cavity is coaxially arranged in the shell (2), the shell (2) is a circular truncated cone, the large end of the shell is coaxially connected with the lower end of the installation supporting block (1) through the internal thread at the upper end of the cavity in a threaded manner, the small end of the shell is coaxially and fixedly connected with a connecting cylinder (14), the alarm device (4) is arranged at the upper part of the cavity, the smoke sensor probe (16) is positioned at the lower part of the cavity of the shell (2), a cylinder body (6) with a closed lower end is coaxially sleeved outside the connecting cylinder (14), and the cylinder body (6) is rotatably arranged on the connecting cylinder (14), a fan assembly is fixedly arranged inside the cylinder (6);
a plurality of vent holes (11) are formed in the upper end surface of the shell (2) in the direction towards the inner cavity of the shell (2), and the vent holes (11) are communicated with the cavity;
the fan assembly comprises a mounting plate (10), a fan (12), a partition plate (7), a connecting rod (9) and a mounting frame (13), the upper end of the mounting plate (10) is fixedly connected with the lower end face of the connecting cylinder (14), the lower end of the mounting plate is abutted against the bottom of the cylinder body (6), the front end and the rear end of the mounting plate (10) are abutted against the inner side wall of the cylinder body (6), and the mounting plate (10) divides the inner cavity of the cylinder body (6) into a left cavity and a right cavity;
the lower end of the connecting rod (9) is coaxially fixed with the barrel body (6), the upper end of the connecting rod (9) sequentially penetrates through a through hole (8) which is formed in the middle of the mounting plate (10) and is coaxial with the barrel body (6) and then is fixedly connected with a partition plate (7) above the mounting plate (10), the cross section of the partition plate (7) is semicircular, the diameter of the partition plate (7) is consistent with the inner diameter of the connecting barrel (14), the outer circumferential surface of the partition plate (7) is attached to the inner wall of the connecting barrel (14), and the partition plate (7) only covers the top of the right cavity or the top of the left cavity;
when dust in the device is cleaned, the wind direction of the fan (12) is from left to right, the upper part of the right cavity of the cylinder body (6) is sealed by the partition plate (7), the through hole (8) is positioned at the bottom of the cylinder body (6) in the right cavity, after the fan (12) is opened, the vent hole (11) above the shell (2) is used as an air inlet, the air enters the left cavity of the cylinder body (6) through the cavity in the shell (2) and the cavity in the connecting cylinder (14), and the air is sent into the right cavity of the cylinder body (6) through the fan (12), and due to the blocking effect of the partition plate (7), the air can be discharged out of the device only through the through hole (8) at the bottom of the right cavity;
under the monitoring state, the barrel (6) is rotated 180 degrees clockwise, a connecting rod (9) fixedly connected with the bottom of the barrel (6) drives a partition plate (7) at the upper end to rotate 180 degrees, at the moment, the upper part of a left cavity of the barrel (6) is sealed by the partition plate (7), a through hole (8) is positioned at the bottom of the barrel (6) in the left cavity, and the position of a fan (12) is not changed, so that the wind direction of the fan (12) still goes from left to right, and wind can only flow from the left cavity to the right cavity of the barrel (6), and in the state, the fan (12) sucks external air into the left cavity through the through hole (8) and flows to the right cavity, and then the air is discharged out of the device from a vent hole (11) above the shell (2) through the cavity of a connecting barrel (14) and the inner cavity of the shell (2);
mounting holes (15) for mounting fans (12) are formed in the mounting plate (10) on two sides of the connecting rod (9), mounting frames (13) are fixedly arranged in the mounting holes (15), and the fans (12) are mounted on the mounting frames (13);
a plurality of through holes (8) are arranged at the bottom of the cylinder (6) below the clapboard (7).
2. An electrical fire detector according to claim 1, characterised in that a mounting collar (5) for placing an alarm device (4) is fixedly arranged on the inner wall of the middle part of the cavity.
3. An electrical fire detector according to claim 1, characterised in that the connecting cylinder (14) is provided with annular projections on its outer circumferential surface, and the cartridge body (6) is rotatably mounted on the connecting cylinder (14) by means of an annular groove in its inner wall in rotational engagement with the annular projections of the connecting cylinder (14).
4. An electrical fire detector according to claim 1, characterised in that the ventilation hole (11) is internally provided with a screen for filtering dust.
5. The electrical fire detector according to claim 1, wherein the outer side of the housing (2) is provided with a plurality of sensor mounting grooves (3) for mounting wireless sensors along the circumferential direction of the axis of the housing (2), and the wireless sensors are flame sensors.
6. The electrical fire detector according to claim 5, wherein the sensor mounting groove (3) is provided with 4.
7. Electrical fire detector according to claim 1, characterised in that the cavity of the housing (2) has the same diameter as the cavity inside the connector barrel (14).
8. The electrical fire detector according to claim 1, wherein the housing (2) is made of antistatic ABS plastic.
CN202011482710.4A 2020-12-16 2020-12-16 Fire detector for electric appliance Active CN112669559B (en)

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CN116292341B (en) * 2023-05-22 2023-08-04 江苏中凯暖通设备有限公司 Centrifugal fire control smoke exhaust fan convenient to wash

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