CN217356984U

CN217356984U - Kitchen cigarette machine air intake blocks up detection device

Info

Publication number: CN217356984U
Application number: CN202121449846.5U
Authority: CN
Inventors: 刘丰; 王惠; 吴兰华; 黄卫斌; 廖信
Original assignee: Marssenger Kitchenware Co Ltd
Current assignee: Marssenger Kitchenware Co Ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-09-02
Anticipated expiration: 2031-06-28

Abstract

The utility model provides a kitchen ventilator air intake blocks up detection device belongs to lampblack absorber technical field. This detection device includes wind pressure sensor, controller and alarm, and wind pressure sensor sets up the air intake at the kitchen cigarette machine and perpendicular with the wind direction, and wind pressure sensor is connected with the signal input part electricity of controller, and the alarm setting is at kitchen cigarette machine top, and the instruction output end electricity of alarm and controller is connected. The device judges according to the wind pressure data sent by the wind pressure sensor by utilizing the controller, and outputs a control instruction to the alarm to enable the alarm to send an alarm when the wind pressure data is smaller than a wind pressure threshold value preset in the controller, so that the device is convenient to use, sensitive and reliable in detection and good in practicability.

Description

Kitchen cigarette machine air intake blocks up detection device

Technical Field

The utility model belongs to the technical field of the kitchen cigarette machine, in particular to kitchen cigarette machine air intake blocks up detection device.

Background

The kitchen ventilator is a kitchen appliance for purifying kitchen environment, it is installed above kitchen range, and is used for collecting waste produced by combustion and oil fume harmful to human body produced in the course of cooking, and discharging the waste and oil fume out of the room so as to attain the goal of purifying indoor air. When the consumer cooks in the kitchen, can produce a large amount of oil smoke, the kitchen cigarette machine is discharged the oil smoke outdoor, but during the culinary art, partly in the oil smoke can adhere in air intake department after the cooling, and the time is of a specified duration, will block up the air intake, influences the amount of wind and the smoking effect of lampblack absorber. The prior art generally reminds consumers to clean filter screens at regular time, but the cooking habits of the consumers in different areas are different, the problem that the air inlet is blocked due to inaccurate time accumulation is solved, and for the consumers who love with cooking, the smoke collecting effect of a cigarette machine is influenced by the blockage of the air inlet, so that the experience effect of a user is greatly reduced.

Disclosure of Invention

In view of this, the utility model provides a kitchen cigarette machine air intake blocks up detection device to solve among the prior art kitchen cigarette machine and block up the problem that can not in time obtain the feedback.

The utility model provides a kitchen cigarette machine air intake blocks up detection device, including wind pressure sensor, controller and alarm, wind pressure sensor sets up the air intake at the kitchen cigarette machine and perpendicular with the wind direction, wind pressure sensor with the signal input part electricity of controller is connected, the alarm sets up at kitchen cigarette machine top, the alarm with the instruction output end electricity of controller is connected, the controller is judged according to the wind pressure data that wind pressure sensor sent to when wind pressure data is less than the preset wind pressure threshold value in the controller, to alarm output control instruction makes the alarm send the warning.

In the device for detecting blockage of the air inlet of the kitchen ventilator, the air pressure threshold comprises a first threshold and a second threshold, and when the air pressure data received by the controller is smaller than the first threshold and larger than the second threshold, the alarm gives an intermittent and scattered alarm; and when the wind pressure data received by the controller is smaller than a second threshold value, the alarm gives an alarm continuously and uninterruptedly.

In the device for detecting blockage of the air inlet of the kitchen range hood, the alarm is a voice alarm or an alarm lamp.

In foretell kitchen cigarette machine air intake blocks up detection device, wind pressure sensor is including feeling wind piece, linking arm, sensitive bars, fixed plate and casing, the fixed plate sets up in the casing, the air inlet direction of feeling wind piece and kitchen cigarette machine air intake is mutually perpendicular, feel the wind piece pass through the linking arm with the fixed plate is connected, sensitive bars laminating is in linking arm one side, the linking arm is the flexure strip, sensitive bars both ends are connected with the controller electricity behind the fixed plate.

In foretell kitchen cigarette machine air intake blocks up detection device, the casing includes shell and apron, set up the groove of stepping down that supplies the linking arm to wear out on the shell, the fixed plate is installed in the shell, the apron lock will on the shell the fixed plate encapsulation.

In the device for detecting blockage of the air inlet of the kitchen range hood, the connecting arm is a strip-shaped thin sheet, two ends of the connecting arm in the length direction are correspondingly connected with the air-sensitive sheet and the fixing plate respectively, and the connecting arm is 5-10mm in length and 2-5mm in width.

In the device for detecting blockage of the air inlet of the kitchen range hood, the fixing plate is a PCB, a signal amplification circuit is recorded on the PCB, two ends of the sensitive grid are connected with the signal input side of the signal amplification circuit, and the signal output side of the signal amplification circuit is connected with the controller.

In foretell kitchen cigarette machine air intake blocks up detection device, the controller still is connected with communication module, the controller still passes through when sending alarm command to the alarm communication module is to user's synchronous propelling movement alarm information of smart mobile phone.

Compared with the prior art, this kitchen cigarette machine air intake blocks up detection device has following advantage: the kitchen range hood has the advantages that the periodic detection of the air inlet volume of the kitchen range hood is realized, the problem of oil smoke blockage of the air inlet can be accurately and timely fed back, corresponding alarm is carried out according to the blockage degree, and a user can visually know the blockage of the air inlet so as to timely clean the kitchen range hood.

Drawings

Fig. 1 is a schematic circuit diagram of an air inlet blockage detection device for a kitchen range hood according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a wind pressure sensor according to the embodiment.

Fig. 3 is a schematic circuit diagram of an air inlet blockage detection device of a kitchen ventilator according to another embodiment of the present invention.

Fig. 4 is a schematic circuit diagram of a kitchen range hood air inlet blockage detection device according to another embodiment of the present invention.

In the figure, 1, a wind pressure sensor; 1a, a wind sensing sheet; 1b, a connecting arm; 1c, a sensitive grid; 1d, fixing plates; 1e, a housing; 1e1, a relief groove; 1f, a cover plate; 2. a controller; 3. an alarm; 4. an amplifying circuit; 5. a communication module; 6. provided is a smart phone.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The first embodiment is as follows:

the embodiment provides a kitchen ventilator air inlet blockage detection device, as shown in fig. 1, the device comprises a wind pressure sensor 1, a controller 2 and an alarm 3. Wherein, wind pressure sensor 1 sets up the air intake at the kitchen cigarette machine and perpendicular with the wind direction, and specific mode of setting can be for setting up a mounting groove at the air intake of kitchen cigarette machine, inserts wind pressure sensor 1 in the mounting groove, perhaps installs wind pressure sensor 1 in the air intake department of kitchen cigarette machine through connecting pieces such as screw, buckle.

Wind pressure sensor 1 is connected with the signal input part electricity of controller 2, alarm 3 sets up at kitchen cigarette machine top, alarm 3 is connected with the instruction output end electricity of controller 2, controller 2 judges according to the wind pressure data that wind pressure sensor 1 sent to when wind pressure data is less than the wind pressure threshold value that presets in the controller 2, to alarm 3 output control command messenger alarm 3 and send the warning. In this embodiment, the controller 2 is implemented by using a 51-series single chip microcomputer or an industrial PLC to receive and process signals of the wind pressure sensor 1 in real time.

Specifically, referring to fig. 2, the wind pressure sensor 1 includes a wind sensing sheet 1a, a connecting arm 1b, a sensitive grid 1c, a fixing plate 1d and a housing, the fixing plate 1d is disposed in the housing, the wind sensing sheet 1a is perpendicular to the air inlet direction of the air inlet of the kitchen range hood, the wind sensing sheet 1a is connected with the fixing plate 1d through the connecting arm 1b, the sensitive grid 1c is attached to one side of the connecting arm 1b, the connecting arm 1b is an elastic sheet, and two ends of the sensitive grid 1c are electrically connected with the controller 2 through the fixing plate 1 d. The connecting arm 1b can be made of strip-shaped thin sheets made of plastics or rubber, the length of the connecting arm is 5-10mm, the width of the connecting arm is 2-5mm, and two ends of the connecting arm 1b in the length direction are respectively connected with the air induction sheet 1a and the fixing plate 1 d. The shape of the wind sensing piece 1a can be square, fan-shaped, round or semicircular,

the casing includes shell 1e and apron 1f, offers the groove of stepping down 1e1 that supplies linking arm 1b to wear out on the shell 1e, and fixed plate 1d installs in shell 1e, and apron 1f lock encapsulates fixed plate 1d on shell 1 e. The shell is fixed on the frame of the air inlet of the kitchen range hood in the modes of screws, rivets, clamping and the like, and can be selected and implemented according to actual conditions, and the shell is preferably fixed by the screws. It should be noted that, the casing and the air-sensitive sheet 1a are made of insulating materials, and the air-sensitive sheet 1a is made of a material with a lower density, such as a plastic plate, an acrylic plate, etc., so as to avoid the influence of the mass of the air-sensitive sheet 1a on the measurement result.

The wind pressure sensor 1 detects wind pressure data of the air inlet periodically and then sends the wind pressure data to the controller 2, a preset wind pressure threshold value in the controller 2 comprises a first threshold value and a second threshold value, and when the wind pressure data received by the controller 2 is smaller than the first threshold value and larger than the second threshold value, the alarm 3 gives an intermittent and scattered alarm; when the wind pressure data received by the controller 2 is smaller than the second threshold value, the alarm 3 gives an alarm continuously. Specifically, the wind pressure data sent by the wind pressure sensor 1 to the controller 2 is preliminarily calculated and adjusted by the controller 2 to obtain an average value of the wind pressure data in the detection period of the wind pressure sensor 1, and then the average value is compared with a preset threshold value, and then a wind pressure threshold value corresponding to a comparison result is obtained to output a control instruction. And the average value is adopted for comparison, so that misjudgment of the controller 2 on the wind pressure can be reduced.

The alarm 3 is a voice alarm 3 or an alarm lamp. The voice alarm 3 can be used for realizing personalized operation by recording the voice by a user in a mode of prerecording an alarm prompt tone; the alarm lamp adopts an LED lamp capable of displaying three colors of red, green and yellow. In practice, the two types of alarm devices 3 may be used alone, or the two types of alarm devices 3 may be used in combination, which is preferable later.

Example two:

as shown in fig. 3, on the basis of the first embodiment, in this embodiment, the fixing plate 1d is a PCB, the signal amplifying circuit 4 is recorded on the PCB, two ends of the sensitive gate 1c are connected to the signal input side of the signal amplifying circuit 4, and the signal output side of the signal amplifying circuit 4 is connected to the controller 2. Through the amplifying circuit 4, the resistance value change of the sensitive grid 1c is more sensitive, and therefore the sensitivity of wind pressure data detection is improved. The amplifying circuit 4 is a common circuit, and therefore, will not be described in detail.

Example three:

as shown in fig. 4, corresponding to the above method embodiment, the controller 2 in this embodiment is further connected to a communication module 5, and the controller 2 sends an alarm instruction to the alarm 3 and simultaneously pushes alarm information to the smart phone 6 of the user through the communication module 5. The communication module can adopt one or more of a WiFi module, a 3G module, a 4G module or a 5G module, so that synchronous alarm of the detection device and the smart phone 6 is realized. Preferably, the communication module adopts a plurality of module combinations, and sets the networking priority according to the communication speed, so that stable communication under various environments can be ensured, and the alarm information can be ensured to be sent to the smart phone 6 of the user in time.

It should be noted that in the foregoing embodiments, the emphasis of each embodiment is to be described on the difference from other embodiments, and the same or similar contents are not described and may be referred to each other for avoiding repeated description.

Specifically, the wind pressure threshold is obtained through the following steps: testing a wind pressure value measured by a wind pressure sensor under the condition that the air inlet is blocked differently through a prototype, and calibrating the wind pressure value at the moment as a first threshold value when the wind pressure is reduced by 10-20% due to the blockage of the air inlet; when the air pressure is reduced by more than 20% due to the blockage of the air inlet, the air pressure value at the moment is calibrated as a second threshold value, and the blockage of the air inlet is classified according to the calibration result. And then, in a detection period, comparing the average value of the detection result with the first threshold value and the second threshold value, so as to grade the comparison result and distinguish and alarm according to the blockage level of the air inlet.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a kitchen cigarette machine air intake blocks up detection device, includes wind pressure sensor (1), controller (2) and alarm (3), its characterized in that, wind pressure sensor (1) set up at the air intake of kitchen cigarette machine and perpendicular with the wind direction, wind pressure sensor (1) with the signal input part electricity of controller (2) is connected, alarm (3) set up at kitchen cigarette machine top, alarm (3) with the instruction output end electricity of controller (2) is connected, controller (2) are judged according to the wind pressure data that wind pressure sensor (1) sent to when wind pressure data is less than the wind pressure threshold value of predetermineeing in controller (2), to alarm (3) output control instruction makes alarm (3) send the warning.

2. The kitchen ventilator air inlet blockage detection device according to claim 1, wherein the air pressure threshold comprises a first threshold and a second threshold, and when the air pressure data received by the controller (2) is smaller than the first threshold and larger than the second threshold, the alarm (3) gives an intermittent and scattered alarm; and when the wind pressure data received by the controller (2) is smaller than a second threshold value, the alarm (3) gives an alarm continuously and uninterruptedly.

3. The kitchen range hood air intake blockage detection device of claim 1 or 2, characterized in that, wind pressure sensor (1) is including feeling wind piece (1a), linking arm (1b), sensitive bars (1c), fixed plate (1d) and casing, fixed plate (1d) sets up in the casing, the air inlet direction of feeling wind piece (1a) and kitchen range hood air intake is mutually perpendicular, feel wind piece (1a) through linking arm (1b) with fixed plate (1d) is connected, sensitive bars (1c) laminating is in linking arm (1b) one side, linking arm (1b) is the flexure strip, sensitive bars (1c) both ends are connected with controller (2) electricity behind fixed plate (1 d).

4. The device for detecting the blockage of the air inlet of the range hood as claimed in claim 3, wherein the shell comprises a shell (1e) and a cover plate (1f), the shell (1e) is provided with a yielding groove (1e1) for the connecting arm (1b) to penetrate out, the fixing plate (1d) is installed in the shell (1e), and the cover plate (1f) is buckled on the shell (1e) to encapsulate the fixing plate (1 d).

5. The device for detecting the blockage of the air inlet of the kitchen ventilator according to claim 3, wherein the connecting arm (1b) is a strip-shaped thin sheet, two ends of the connecting arm (1b) in the length direction are correspondingly connected with the air sensing sheet (1a) and the fixing plate (1d) respectively, the length of the connecting arm (1b) is 5-10mm, and the width of the connecting arm (1b) is 2-5 mm.

6. The device for detecting the blockage of the air inlet of the range hood in the kitchen according to claim 3, wherein the fixing plate (1d) is a PCB (printed circuit board), a signal amplifying circuit (4) is recorded on the PCB, two ends of the sensitive grid (1c) are connected with the signal input side of the signal amplifying circuit (4), and the signal output side of the signal amplifying circuit (4) is connected with the controller (2).

7. The kitchen ventilator air inlet blockage detection device according to claim 1 or 2, wherein the controller (2) is further connected with a communication module (5), and the controller (2) sends an alarm instruction to the alarm (3) and simultaneously synchronously pushes alarm information to a smart phone (6) of a user through the communication module (5).

8. The device for detecting the blockage of the air inlet of the range hood for the kitchen according to claim 1 or 2, wherein the alarm (3) is a voice alarm or an alarm lamp.