CN108574264B - Household appliance and fire prevention control method thereof - Google Patents
Household appliance and fire prevention control method thereof Download PDFInfo
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- CN108574264B CN108574264B CN201710149397.4A CN201710149397A CN108574264B CN 108574264 B CN108574264 B CN 108574264B CN 201710149397 A CN201710149397 A CN 201710149397A CN 108574264 B CN108574264 B CN 108574264B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
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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
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Abstract
The invention discloses a household appliance and a fire prevention control method of the household appliance, wherein the household appliance comprises a first smoke sensor, a power supply device and a controller, the first smoke sensor is used for detecting a smoke concentration value of an inner cavity of the household appliance, the power supply device is used for supplying power to all parts of the household appliance, and the controller is electrically connected with the first smoke sensor and the power supply device and is used for controlling the power supply device to be powered off when the smoke concentration value of the inner cavity of a machine body reaches a set risk value; usually, the smoke concentration value of the inner cavity of the household appliance is monitored, and the smoke concentration value of the inner cavity is compared with a set risk value, so that the fire risk condition of the household appliance is accurately judged, and the household appliance can be accurately prevented from being fired.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a household appliance and a fire prevention control method thereof.
Background
With the provision of the quality of life of people, the usage amount and usage scenarios of household appliances become more and more complicated. Every year, safety accidents caused by the fire of the household appliances are inexhaustible, and the fire prevention safety of the household appliances is more and more a decisive factor for whether a product can be on the market or not.
The traditional household appliances are protected against fire mainly by some safety devices of the machine itself, such as: fuse, varistor, etc., but these safety devices do not provide a more precise and efficient protection against the fire risk of the machine.
Disclosure of Invention
The invention mainly aims to provide a household appliance and a fire prevention control method thereof, and aims to solve the problem that the accuracy of safety devices of the conventional household appliance is not enough.
In order to achieve the above object, the present invention provides a household appliance, comprising:
the first smoke sensor is used for detecting a smoke concentration value of an inner cavity of the household appliance;
the power supply device is used for supplying power to all parts of the household appliance; and the number of the first and second groups,
and the controller is electrically connected with the first smoke sensor and the power supply device and is used for controlling the power-off of the power supply device when the smoke concentration value of the inner cavity of the machine body reaches a set risk value.
Preferably, the household appliance further comprises a second smoke sensor for detecting a smoke concentration value of an environment in which the household appliance is located;
the controller is electrically connected with the second smoke sensor and used for controlling the power-off of the power supply device when the smoke concentration value of the environment where the household appliance is located reaches the set risk value.
Preferably, the household appliance further comprises a ventilation device for ventilating the inner cavity of the household appliance and the environment where the household appliance is located;
the controller is further electrically connected with the air interchanger and used for controlling the air interchanger to be opened for air interchange when the smoke concentration value of the inner cavity of the household appliance and the smoke concentration value of the environment where the household appliance is located reach the set risk value and the smoke concentration value of the inner cavity of the household appliance is larger than the smoke concentration value of the environment where the household appliance is located.
Preferably, the household appliance further comprises an alarm device;
the controller with alarm device electric connection for when the smog concentration value of domestic appliance inner chamber or the smog concentration value of domestic appliance place environment reaches the settlement alarm value, control alarm device work, wherein, set for the alarm value be less than set for the risk value.
Preferably, the alarm device is at least one of an acoustic alarm device, an optical alarm device and a communication device in communication connection with a terminal device of a user.
Preferably, the sterilizing device includes at least one of an ultraviolet sterilizing device, a far infrared sterilizing device, and a plasma sterilizing device.
Preferably, the power supply device includes a power supply circuit and a switching element disposed on the power supply circuit, and the controller is electrically connected to the switching element and controls the power supply device to be powered off by switching the switching element.
The invention also provides a fire prevention control method of the household appliance, which comprises the following steps:
acquiring a smoke concentration value of an inner cavity of the household appliance;
and when the smoke concentration value of the inner cavity reaches a set risk value, controlling the household appliance to be powered off.
Preferably, the fire protection control method of the home appliance further includes:
detecting a smoke concentration value of an environment where the household appliance is located;
and when the smoke concentration value of the environment where the household appliance is located reaches the set risk value, controlling the household appliance to be powered off.
Preferably, the fire protection control method of the home appliance further includes:
when the smoke concentration value of the inner cavity of the household appliance and the smoke concentration value of the environment where the household appliance is located reach the set risk value and before the smoke concentration value of the inner cavity of the household appliance and the smoke concentration value of the environment where the household appliance is located reach the set risk value, preferably, the method for controlling fire prevention of the household appliance further comprises the following steps:
and when the smoke concentration value of the inner cavity of the household appliance or the smoke concentration value of the environment where the household appliance is located reaches a set alarm value, starting an alarm, wherein the set alarm value is smaller than the set risk value.
According to the technical scheme provided by the invention, the smoke concentration value of the inner cavity of the household appliance is generally monitored, and the smoke concentration value of the inner cavity is compared with the set risk value so as to accurately judge the fire risk condition of the household appliance, so that the household appliance can be accurately prevented from fire.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic diagram of a framework of a control portion of an embodiment of a home appliance provided by the present invention;
fig. 2 is a schematic flow chart of an embodiment of a fire protection control method for a home appliance provided in the present invention.
The reference numbers illustrate:
reference numerals | Name (R) | Reference numerals | Name (R) |
1 | First smoke sensor | 4 | Second smoke sensor |
2 | Power supply device | 5 | |
3 | Controller | 6 | Alarm device |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a household appliance which can be an induction cooker, an electric pressure cooker, a soybean milk machine, a wall breaking machine, a juice extractor, an electric kettle and the like, and figure 1 is a frame schematic diagram of a control part of one embodiment of the household appliance
Referring to fig. 1, the household appliance includes a first smoke sensor 1, a power supply device 2 and a controller 3. The first smoke sensor 1 is used for detecting a smoke concentration value of an inner cavity of the household appliance, the first smoke sensor 1 can be completely arranged in the inner cavity of the household appliance, or only the detection head of the first smoke sensor 1 extends into the inner cavity of the household appliance so as to detect the smoke concentration value of the inner cavity of the household appliance. The power supply device 2 is used to supply power to various components of the household appliance, and the power supply device 2 is generally a power supply circuit (described in detail in the following sections). The controller 3 is electrically connected with the first smoke sensor 1 and the power supply device 2 and is used for controlling the power supply device 2 to be powered off when the smoke concentration value in the inner cavity of the household appliance reaches a set risk value. The set risk value is a numerical value smaller than a fire concentration point value, wherein the fire concentration point value is a value obtained through a large number of tests, and when smoke in the inner cavity of the household appliance reaches the fire concentration point value, the inner cavity of the household appliance is exploded when sparks occur.
When the first smoke sensor 1 detects that the smoke concentration of the inner cavity of the household appliance reaches a set risk value, the controller 3 can control the power supply device 2 to be powered off, at the moment, the circuit of the household appliance is in an unable conducting state, even if the household appliance is connected with an external power supply, and a control switch of the household appliance is turned on, or a control instruction is sent to the household appliance, the household appliance does not have any reaction, so that the household appliance cannot generate electric sparks, and further, the phenomenon that the electric sparks are generated to cause fire disasters due to the fact that the smoke concentration of the inner cavity of the household appliance is large is avoided.
The environment where the household appliance is located is usually a closed environment, the closed environment also has the problem of high smoke concentration, if the smoke concentration in the environment is high, and when an electric spark exists in the environment, a fire disaster can be caused, the household appliance is also used as one of the sources of the electric spark, in the embodiment, the household appliance is further provided with a second smoke sensor 4, the second smoke sensor 4 is integrally arranged on the shell of the household appliance and is relatively well close to the air outlet of the household appliance, or the second smoke sensor 4 is partially arranged in the household appliance, only the detection head part of the second smoke sensor 4 is exposed to the outside, the detection head part of the second smoke sensor 4 is relatively well close to the air outlet of the household appliance, the second smoke sensor 4 detects the smoke concentration value of the environment where the household appliance is located, and the controller 3 is also electrically connected with the second smoke sensor 4, the control device is used for controlling the power supply device 2 to be powered off when the smoke concentration value of the environment where the household appliance is located reaches a set risk value. Therefore, the electric spark is avoided when the smoke concentration of the environment where the household appliance is located is high, namely the set risk value is reached.
There are actually scenarios: the smoke concentration of the inner cavity of the household appliance is relatively high, the smoke concentration of the environment where the household appliance is located is relatively low, at this time, if development is allowed, the smoke concentration of the inner cavity of the household appliance can be further increased to a set risk value, the controller 3 can control the power supply device 2 to be powered off, therefore, in the embodiment, the household appliance further comprises the ventilation device 5, generally speaking, the ventilation device 5 is a ventilation fan, the ventilation device 5 is used for ventilating the inner cavity of the household appliance and the environment where the household appliance is located, the controller 3 is further electrically connected with the ventilation device 5 and is used for controlling the ventilation device to be turned on to ventilate before the smoke concentration value of the inner cavity of the household appliance and the smoke concentration value of the environment where the household appliance is located reach the set risk value, and when the smoke concentration value of the environment where the household appliance is located of the inner cavity of the household appliance, the, avoiding the situation that the power supply device 2 is finally controlled to be powered off due to the development of the design.
In the process that the smoke concentration of the inner cavity of the household appliance rises, if the user can be known before the set risk value is reached, the user can take corresponding measures to reduce the smoke concentration of the inner cavity of the household appliance, and the situation that the power supply device 2 is finally controlled to be powered off is avoided.
The alarm device 6 is at least one of a sound alarm device, an optical alarm device and a communication device in communication connection with a terminal device of a user, when the alarm device 6 is the sound alarm device or the optical alarm device, the user nearby the household appliance can be informed in time, the smoke concentration of the inner cavity of the household appliance or the environment outside the household appliance is high and needs to be processed, and when the alarm device 6 is the communication device, the communication device can directly send a short message to the terminal device of the user, such as a mobile phone, so as to inform the user that the smoke concentration in the household appliance is high.
In the present embodiment, the power supply device 2 includes a power supply circuit (not shown) and a switch element (not shown) disposed in the power supply circuit, the controller 3 is electrically connected to the switch element, and the switch element is switched to control the power supply device 2 to be powered off, the switch element may be a normally closed button, and is in a closed state in a normal condition.
The present invention further provides a fire protection control method for a home appliance, and fig. 2 is an embodiment of the fire protection control method for a home appliance provided by the present invention:
referring to fig. 2, the fire protection control method of the household appliance includes:
step S10, obtaining a smoke concentration value of an inner cavity of the household appliance;
the smoke concentration value of the inner cavity of the household appliance can be detected by arranging the first smoke sensor 1, the first smoke sensor 1 can be integrally arranged in the inner cavity of the household appliance, or only the detection head extends into the inner cavity of the household appliance, the first smoke sensor 1 outputs the smoke concentration value of the inner cavity of the household appliance to the controller 3, namely, the controller 3 obtains the smoke concentration value of the inner cavity of the household appliance;
and step S12, controlling the household appliance to be powered off when the smoke concentration value of the inner cavity of the household appliance reaches a set risk value.
The controller 3 stores a set risk value, the set risk value is a numerical value smaller than a fire concentration point value, the fire concentration point value is a value obtained through a large number of tests, and when smoke in the inner cavity of the household appliance reaches the fire concentration point value, the inner cavity of the household appliance can be exploded when sparks occur. After obtaining the smog concentration value that obtains the domestic appliance inner chamber, controller 3 compares the smog concentration value of domestic appliance inner chamber with setting for the risk value, when the smog concentration of domestic appliance inner chamber reaches setting for the risk value, controller 3 can control domestic appliance outage, at this moment, domestic appliance's circuit is in unable conducting state, even domestic appliance connects the external power supply, and open domestic appliance's control switch, or send control command to domestic appliance, domestic appliance does not have any reaction, so, domestic appliance can not produce the electric spark, and then, when avoiding because of domestic appliance inner chamber smog concentration is big, and produce the electric spark in order to arouse the conflagration.
The environment where the household appliance is located is usually a closed environment, the closed environment also has a problem of large smoke concentration, if the smoke concentration in the environment is large, and when an electric spark exists in the environment, a fire disaster also can be caused, and the household appliance is used as one of sources of the electric spark, for this reason, in this embodiment, the fire prevention control method of the household appliance further includes:
step S20, obtaining a smoke concentration value of the environment where the household appliance is located;
the smoke concentration value of the environment where the household appliance is located can be detected by arranging the second smoke sensor 4, the second smoke sensor 4 can be arranged on the shell of the household appliance and is relatively close to the air outlet of the household appliance, or the second smoke sensor 4 can be not arranged on the shell of the household appliance and only needs to be arranged in the environment where the household appliance is located, the second smoke sensor 4 outputs the smoke concentration value of the environment where the household appliance is located to the controller 3, namely, the controller 3 obtains the smoke concentration value of the environment where the household appliance is located;
and step S22, controlling the household appliance to be powered off when the smoke concentration value of the environment where the household appliance is located reaches a set risk value.
The controller 3 stores a set risk value, the set risk value is a numerical value smaller than a fire concentration point value, the fire concentration point value is a value obtained through a large number of tests, and when smoke of the environment where the household appliance is located reaches the fire concentration point value, the environment where the household appliance is located can be exploded when sparks occur. After obtaining the smoke concentration value of the environment where the household appliance is located, the controller 3 compares the smoke concentration value of the environment where the household appliance is located with a set risk value.
When the smog concentration of domestic appliance place environment reached and sets for the risk value, the domestic appliance outage can be controlled to controller 3, at this moment, domestic appliance's circuit is in unable conducting state, even domestic appliance connects up the external power, and open domestic appliance's control switch, perhaps send control command to domestic appliance, domestic appliance does not all have any reaction, so, domestic appliance can not produce the electric spark, and then, avoid when big because of domestic appliance's place environment smog concentration, arouse the conflagration when producing the electric spark.
There are actually scenarios: the smog concentration ratio of domestic appliance inner chamber is bigger, and the smog concentration of domestic appliance place environment is less, at this moment, can if by development wantonly, the smog concentration of domestic appliance inner chamber can further increase to when setting for the risk value, and controller 3 can control the domestic appliance outage, and for this reason, in this embodiment, domestic appliance's fire prevention control method still includes: and when the smoke concentration value of the inner cavity of the household appliance and the smoke concentration value of the environment where the household appliance is located reach the set risk value and the smoke concentration value of the inner cavity of the household appliance is greater than the smoke concentration value of the environment where the household appliance is located, controlling the inner cavity of the household appliance to be ventilated. Specifically, the household appliance may be provided with a ventilation device 5 (usually a ventilation fan), and the controller 3 controls the ventilation device 5 to be turned on so as to ventilate the inner cavity of the household appliance.
In the ascending process of the smoke concentration in the inner cavity of the household appliance, if the user can be known before the set risk value is reached, the user has enough time to take corresponding measures so as to reduce the smoke concentration in the inner cavity of the household appliance and avoid finally controlling the power supply device 2 to be powered off, and therefore, in the embodiment, the household appliance further comprises: and when the smoke concentration value of the inner cavity of the household appliance or the smoke concentration value of the environment where the household appliance is located reaches a set alarm value, starting an alarm, wherein the set alarm value is smaller than the set risk value.
Specifically, the household appliance is provided with an alarm device 6 electrically connected with the controller 3, and the controller 3 is used for controlling the alarm device 6 to work when the smoke concentration value of the inner cavity or the smoke concentration value of the environment where the household appliance is located reaches a preset alarm value. The alarm device 6 is at least one of an acoustic alarm device 6, an optical alarm device 6 and a communication device in communication connection with a terminal device of a user, when the alarm device 6 is the acoustic alarm device 6 or the optical alarm device 6, the user nearby the household appliance can be informed in time that the smoke concentration in the household appliance is high and needs to be processed, and when the alarm device 6 is the communication device, the communication device can directly send a short message to the terminal device of the user, such as a mobile phone, so as to inform the user that the smoke concentration in the household appliance is high.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A household appliance, characterized in that it comprises:
the first smoke sensor is used for detecting a smoke concentration value of an inner cavity of the household appliance;
the power supply device is used for supplying power to all parts of the household appliance; and the number of the first and second groups,
the controller is electrically connected with the first smoke sensor and the power supply device and used for controlling the power-off of the power supply device when the smoke concentration value of the inner cavity of the household appliance reaches a set risk value;
the household appliance also comprises a second smoke sensor for detecting the smoke concentration value of the environment where the household appliance is located and a ventilation device for ventilating the inner cavity of the household appliance and the environment where the household appliance is located;
the controller is also electrically connected with the second smoke sensor and used for controlling the power-off of the power supply device when the smoke concentration value of the environment where the household appliance is located reaches the set risk value;
the controller is further electrically connected with the air interchanger and used for controlling the air interchanger to be started to ventilate when the smoke concentration value of the inner cavity and the smoke concentration value of the environment where the household appliance is located reach the set risk value and the smoke concentration value of the inner cavity is larger than the smoke concentration value of the environment where the household appliance is located.
2. The household appliance according to claim 1, further comprising an alarm device;
the controller with alarm device electric connection for when the smog concentration value of domestic appliance inner chamber or the smog concentration value of domestic appliance place environment reaches preset alarm value, control alarm device work, wherein, preset alarm value is less than set for the risk value.
3. The household appliance according to claim 2, wherein the alarm device is at least one of an audible alarm device, an optical alarm device and a communication device communicatively connected to a terminal device of a user.
4. A domestic appliance as claimed in claim 3, wherein said alarm means comprise acoustic or optical alarm means and communication means to which the user's terminal device is communicatively connected.
5. The household appliance according to any one of claims 1 to 4, wherein the power supply device comprises a power supply circuit and a switch element arranged on the power supply circuit, the controller is electrically connected with the switch element, and the power supply device is controlled to be powered off by switching the switch element.
6. A fire prevention control method of a household appliance is characterized by comprising the following steps:
acquiring a smoke concentration value of an inner cavity of the household appliance;
when the smoke concentration value of the inner cavity of the household appliance reaches a set risk value, controlling the household appliance to be powered off;
the fire prevention control method of the household appliance further comprises the following steps:
acquiring a smoke concentration value of an environment where the household appliance is located;
when the smoke concentration value of the environment where the household appliance is located reaches the set risk value, controlling the household appliance to be powered off;
the fire prevention control method of the household appliance further comprises the following steps:
and controlling the inner cavity of the household appliance to be ventilated before the smoke concentration of the inner cavity of the household appliance and the smoke concentration of the environment where the household appliance is located reach the set risk value and when the smoke concentration of the inner cavity of the household appliance is greater than the smoke concentration of the environment where the household appliance is located.
7. The fire prevention control method of a home appliance according to claim 6, further comprising:
and when the smoke concentration value of the inner cavity of the household appliance or the smoke concentration value of the environment where the household appliance is located reaches a set alarm value, starting an alarm, wherein the set alarm value is smaller than the set risk value.
8. The fire protection control method of a home appliance according to claim 7, wherein the step of turning on an alarm when the smoke concentration value of the inner cavity of the home appliance or the smoke concentration value of the environment in which the home appliance is located reaches a set alarm value comprises:
and when the smoke concentration value of the inner cavity of the household appliance or the smoke concentration value of the environment where the household appliance is located reaches a set alarm value, at least one of a sound alarm device and an optical alarm device is started to alarm, and information is sent to terminal equipment of a user through a communication device.
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CN112596402A (en) * | 2020-12-09 | 2021-04-02 | 青岛海尔空调器有限总公司 | Method and device for safety protection of intelligent household equipment and intelligent household equipment |
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