CN204943602U - Can the range hood of automatic open close - Google Patents
Can the range hood of automatic open close Download PDFInfo
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- CN204943602U CN204943602U CN201520519438.0U CN201520519438U CN204943602U CN 204943602 U CN204943602 U CN 204943602U CN 201520519438 U CN201520519438 U CN 201520519438U CN 204943602 U CN204943602 U CN 204943602U
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- temperature
- temperature value
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- control unit
- range hood
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Abstract
The utility model relates to a kind of range hood, it includes a casing, one is located at the blower fan in casing, one temperature sensing unit being located at casing, and the control unit that couples blower fan and temperature sensing unit, temperature sensing unit has one first temperature sensor, one second temperature sensor, and a three-temperature sensor, first, second and third temperature sensor lays respectively at the bottom surface of casing, the inside of casing and the end face of casing, control unit can receive first, the temperature sensing signal that second and third temperature sensor sends, make control unit can calculate one first temperature value according to received temperature sensing signal, one second temperature value and one the 3rd temperature value, and by first, the temperature difference between second and third temperature value and control further blower fan keying or adjustment blower fan rotating speed size.
Description
Technical field
The utility model is relevant with range hood, refer to especially a kind of can the range hood of automatic open close.
Background technology
General housewife can determine whether start range hood according to the degree of oil smoke and high temperature when cooking, and often because want the expenditure of saving the electricity charge, so can not range hood be used when cooking as far as possible, but such result not only easily causes indoor to be covered with oil smoke, simultaneously also can to the respiratory system generation injury to a certain degree of household.
In order to solve the problem, on the market the fume eliminating chance of some to be forced by different induction mechanisms to start, such as TaiWan, China is announced the control circuit board that sensed variations in temperature to be mainly sent to controlling organization by the temperature sensitive member that is arranged on housing by M356080 Patent Case and is carried out computing, when temperature sensitive member senses the transition temperature of the temperature of ambient gas or housing group higher than a predetermined temperature value, controlling organization can direct starter, motor driving wind stomach is made to carry out smoke evacuation action, but one commonly use in Patent Case at this, temperature sensitive member is easy to the impact being subject to climate change, cause the problem of sensitivity aspect and the generation of misoperation, the temperature on average in such as summer is higher, the variations in temperature that temperature sensitive member is sensed is easy to just higher than predetermined temperature value, cause motor to start than very fast, and the temperature on average in winter is lower, the variations in temperature that temperature sensitive member senses just compares comparatively speaking and is not easy higher than predetermined temperature value, so motor can start slow, the puzzlement of user and inconvenience can be caused like this when reality uses.
In addition, it is arrange first in housing that TaiWan, China announces No. 408809 Patent Case, second detecting part, first, second detecting part is mainly used for detecting the surface temperature of top board and the surface temperature of base plate respectively, then temperature difference is between the two calculated by computing circuit, and control motor starting according to the change within a certain period of time of this temperature difference, close or speed change, but, due to first, second detecting part is positioned at the same space, so both temperature spreads of detecting not obvious, computing circuit is so easily allowed to produce the error on judging and affect the follow-up control result to motor.
Summary of the invention
For the problems referred to above, main purpose of the present utility model is to provide a kind of range hood, and it has good sensing sensitivity and can not have the generation of misoperation, carries out smoke evacuation action accurately to control fan.
For achieving the above object, provided by the utility model a kind of can the range hood of automatic open close, it is characterized in that including: a casing, have a discharge flue, described discharge flue has an entrance and an outlet; One blower fan, to be located in described casing and to have the motor that a fan and connects described fan; One temperature sensing unit, there is one first temperature sensor, one second temperature sensor, and a three-temperature sensor, the bottom surface of described casing is located at by described first temperature sensor, in order to send one first temperature sensing signal, described second temperature sensor to be located in described casing and to be adjacent to the outlet of described discharge flue, in order to send one second temperature sensing signal, described three-temperature sensor is located at the end face of described casing, in order to send one the 3rd temperature sensing signal; One control unit, couple the motor of described blower fan and described temperature sensing unit, in order to receive described first, second and third temperature sensing signal, make described control unit can calculate one first temperature value, one second temperature value and one the 3rd temperature value respectively according to described first, second and third temperature sensing signal, and control the keying of described motor by the temperature difference between described first, second and third temperature value or adjust the rotating speed size of described motor.
In above-mentioned the technical solution of the utility model, when described first temperature value deduct described 3rd temperature value be greater than first default value time, described control unit controls described motor and carries out first paragraph running.
When described second temperature value deduct described 3rd temperature value be more than or equal to second default value time, described control unit controls described motor and carries out second segment running, and the rotating speed that described motor operates at second segment is higher than the rotating speed operated at first paragraph.
When described second temperature value deduct described 3rd temperature value be greater than the 3rd default value time, described control unit controls described motor and carries out the 3rd section of running, described motor the 3rd section running rotating speed higher than the rotating speed operated at second segment.
When described second temperature value deduct described 3rd temperature value be less than described 3rd default value time, described control unit controls described motor and carries out second segment running.
When described second temperature value deduct described 3rd temperature value be less than described second default value time, described control unit controls described motor and carries out first paragraph running.
When described second temperature value equals described 3rd temperature value, or when described first temperature value equals described 3rd temperature value, described control unit controls described motor and shuts down.
The motor of described blower fan couples an air rate adjustment switch, when described air rate adjustment switch described control unit be in be activated under an automatic mode time, described control unit can be removed and switch to a manual mode to the automatic control of described motor, makes described air rate adjustment switch by manual operation to switch the rotating speed of described motor.
Adopt technique scheme, this control unit of the present utility model can calculate one first temperature value, one second temperature value and one the 3rd temperature value respectively according to first, second and third temperature sensing signal, and the keying of motor or the rotating speed size of adjustment motor is controlled further by the temperature difference between first, second and third temperature value, so can reach the effect promoting sensing sensitivity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of guidance panel of the present utility model;
Fig. 3 is block diagram of the present utility model;
Fig. 4 is the utility model flow chart in a manual mode;
Fig. 5 is the utility model flow chart in automatic mode.
Detailed description of the invention
In order to describe structure of the present utility model, Characteristic in detail, the following preferred embodiment of existing act also coordinates accompanying drawing to be described as follows.
As shown in Figures 1 and 3, range hood 10 of the present utility model includes casing 20, blower fan 30, temperature sensing unit 40, and a control unit 50.
Casing 20 to be fixed on wall and to have a discharge flue 22, and discharge flue 22 has an entrance 24 and and exports 26.
Blower fan 30 to be located in casing 20 and to be had the motor 34 that a fan 32 and connects fan 32, and fan 32 can be rotated, for carrying out smoke evacuation action to the oil smoke entered in discharge flue 22 by the driving of motor 34.
Temperature sensing unit 40 has one first temperature sensor 41,1 second temperature sensor 42, and a three-temperature sensor 43.The bottom surface of casing 20 is located at by first temperature sensor 41, one first temperature sensing signal is sent for sensing the temperature of stove fire, second temperature sensor 42 to be located in casing 20 and to be adjacent to the outlet of discharge flue 22, for sense discharge flue 22 outlet 26 near temperature and send one second temperature sensing signal, three-temperature sensor 43 is located at the end face of casing 20, sends one the 3rd temperature sensing signal for sensing the temperature of indoor environment.
Control unit 50 couples motor 34 and the temperature sensing unit 40 of blower fan 30, for receiving the first temperature sensing signal of the first temperature sensor 41, second temperature sensing signal of the second temperature sensor 42 and the 3rd temperature sensing signal of three-temperature sensor 43, make control unit 50 can according to first, second and third temperature sensing signal and calculate one first temperature value respectively, one second temperature value and one the 3rd temperature value, again by first, the temperature difference between second and third temperature value and the action controlling motor 34 (are such as opened, close or rotating speed size).And be directly located at the bottom surface of casing 20 due to the first temperature sensor 41, between itself and gas stove table without any barrier, therefore when stove fire opens, the temperature of reaction stove fire can be sensed immediately, with the shortest time, the first sensed temperature sensing signal can be delivered to control unit 50, such arranging can obtain a most appropriate reaction.
When practical operation, as shown in Figures 2 and 4, when will start blower fan 30 when gas oven 11 is under the state of not opening fire, because the first temperature sensor 41 senses less than stove fire temperature, so the motor 34 of blower fan 30 can not be forced to start, user now needs to press a power switch 16 in a manual manner respectively and opens an illuminating lamp 12 to the motor 34 and pressing one light switch 18 that start blower fan 30, after pushing power switch 16, user can press the motor 34 that an air rate adjustment switch 17 controls blower fan 30 again and carry out first paragraph running (i.e. low-speed running), second segment running (i.e. middling speed running) or the 3rd section of running (namely running up), while pressing air rate adjustment switch 17, control unit 50 can open a first paragraph wind speed display lamp 13 according to the rotating speed size of motor 34 more respectively, one second segment wind speed display lamp 14 and one the 3rd section of wind speed display lamp 15, as long as the motor 34 that last pushing power switch 16 again can control blower fan 30 shuts down, close illuminating lamp 12 and each section of wind speed display lamp 13 in the lump simultaneously, 14, 15.
It should be noted that at this, range hood 10 of the present utility model to be electrically connected and not yet manually or automatically operate time, perseverance is in OFF state (being generally with red colored lamp display) by the indicator lamp of power switch 16, and enter manually once range hood 10 or automatically operate, the indicator lamp of power switch 16 then changes the state (being generally with green light display) being shown in ON.
Again as shown in Figure 5, when user opens gas oven 11 under the situation that blower fan 30 does not start, first temperature sensor 41 can sense stove fire temperature and the first temperature sensing signal is sent to control unit 50, control unit 50 now can according to first, three-temperature sensor 41, variations in temperature between 43 determines whether starter 34, when the first temperature value that control unit 50 calculates deduct the 3rd temperature value be greater than one first default value (being defaulted as 5 DEG C at this) time, control unit 50 can control motor 34 and carry out first paragraph running (i.e. low-speed running), make fan 32 start to carry out smoke evacuation action and open illuminating lamp 12 and first paragraph wind speed display lamp 13 simultaneously.After motor 34 carries out a period of time with first paragraph running, control unit 50 can again according to second, three-temperature sensor 42, variations in temperature between 43 determines whether that controlling motor 34 accelerates, when the second temperature value that control unit 50 calculates deduct the 3rd temperature value be greater than one second default value (being defaulted as 10 DEG C at this) time, control unit 50 controls motor 34 and switches to second segment running (i.e. middling speed running), close first paragraph wind speed display lamp 13 simultaneously and open second segment wind speed display lamp 14, the second temperature value calculated once control unit 50 deducts the 3rd temperature value and is greater than one the 3rd default value (being defaulted as 20 DEG C at this), control unit 50 can control motor 34 and switch to the 3rd section of running (namely running up), close second segment wind speed display lamp 14 simultaneously and open the 3rd section of wind speed display lamp 15.
On the other hand, when the second temperature value that control unit 50 calculates deduct the 3rd temperature value be less than the 3rd default value (being defaulted as 20 DEG C at this) time, represent that stove fire starts slowly to diminish, control unit 50 now can control motor 34 and switch to second segment running from the 3rd section of running, close the 3rd section of wind speed display lamp 15 simultaneously and open second segment wind speed display lamp 14, continue in the process diminished at stove fire, second, the temperature difference between 3rd temperature value also can reduce gradually, until the second temperature value deducts the 3rd temperature value when being less than the second default value (being defaulted as 10 DEG C at this), control unit 50 can control motor 34 and switch to first paragraph running from second segment running, close second segment wind speed display lamp 14 simultaneously and open first paragraph wind speed display lamp 13, then after gas oven 11 closes fire, first temperature sensor 41 can sense the first temperature value and decline gradually, the temperature value that second temperature sensor 42 senses also can decline gradually, when the second temperature value equals the 3rd temperature value, or first temperature value when equaling the 3rd temperature value, control unit 50 can control motor 34 and shut down, close illuminating lamp 12 and all wind speed display lamps 13 simultaneously, 14, 15, so namely be returned to original state.
It should be added that at this, if after going to have pressed air rate adjustment switch 17 with hand in automatic mode, whole system can switch to manual mode, user now can only control the rotating speed of motor 34 by pressing air rate adjustment switch 17, control unit 50 can't automatically switch the rotating speed of motor 34, until whole system shutdown restarts again, again automatic mode can be entered.
In addition, the utility model, except being applicable to generally traditional range hood, being also applicable to the europeanized formula range hood being generally commonly called as middle island, can reaching the effect of automatic open close and speed change equally.
In sum, range hood 10 of the present utility model senses the variations in temperature of diverse location by the temperature sensor 41,42,43 of three diverse locations, the action of motor 34 is controlled again further according to the temperature difference between three, compared to located by prior art, range hood 10 of the present utility model has better sensing sensitivity really, is not easy to be subject to the interference of human body, sunlight or other external environment factors and reaches the object effectively avoiding producing misoperation.
Claims (8)
1. can the range hood of automatic open close, it is characterized in that including:
One casing, has a discharge flue, and described discharge flue has an entrance and an outlet;
One blower fan, to be located in described casing and to have the motor that a fan and connects described fan;
One temperature sensing unit, there is one first temperature sensor, one second temperature sensor, and a three-temperature sensor, the bottom surface of described casing is located at by described first temperature sensor, in order to send one first temperature sensing signal, described second temperature sensor to be located in described casing and to be adjacent to the outlet of described discharge flue, in order to send one second temperature sensing signal, described three-temperature sensor is located at the end face of described casing, in order to send one the 3rd temperature sensing signal;
One control unit, couple the motor of described blower fan and described temperature sensing unit, in order to receive described first, second and third temperature sensing signal, make described control unit can calculate one first temperature value, one second temperature value and one the 3rd temperature value respectively according to described first, second and third temperature sensing signal, and control the keying of described motor by the temperature difference between described first, second and third temperature value or adjust the rotating speed size of described motor.
2. as claimed in claim 1 can the range hood of automatic open close, it is characterized in that: when described first temperature value deduct described 3rd temperature value be greater than first default value time, described control unit controls described motor and carries out first paragraph running.
3. as claimed in claim 2 can the range hood of automatic open close, it is characterized in that: when described second temperature value deduct described 3rd temperature value be more than or equal to second default value time, described control unit controls described motor and carries out second segment running, and the rotating speed that described motor operates at second segment is higher than the rotating speed operated at first paragraph.
4. as claimed in claim 3 can the range hood of automatic open close, it is characterized in that: when described second temperature value deduct described 3rd temperature value be greater than the 3rd default value time, described control unit controls described motor and carries out the 3rd section of running, described motor the 3rd section running rotating speed higher than the rotating speed operated at second segment.
5. as claimed in claim 4 can the range hood of automatic open close, it is characterized in that: when described second temperature value deduct described 3rd temperature value be less than described 3rd default value time, described control unit controls described motor and carries out second segment running.
6. as claimed in claim 5 can the range hood of automatic open close, it is characterized in that: when described second temperature value deduct described 3rd temperature value be less than described second default value time, described control unit controls described motor and carries out first paragraph running.
7. according to any one of claim 1 to 6 can the range hood of automatic open close, it is characterized in that: when described second temperature value equals described 3rd temperature value, or when described first temperature value equals described 3rd temperature value, described control unit controls described motor and shuts down.
8. as claimed in claim 1 can the range hood of automatic open close, it is characterized in that: the motor of described blower fan couples an air rate adjustment switch, when described air rate adjustment switch described control unit be in be activated under an automatic mode time, described control unit can be removed and switch to a manual mode to the automatic control of described motor, makes described air rate adjustment switch by manual operation to switch the rotating speed of described motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519438.0U CN204943602U (en) | 2015-07-17 | 2015-07-17 | Can the range hood of automatic open close |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520519438.0U CN204943602U (en) | 2015-07-17 | 2015-07-17 | Can the range hood of automatic open close |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204943602U true CN204943602U (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520519438.0U Expired - Fee Related CN204943602U (en) | 2015-07-17 | 2015-07-17 | Can the range hood of automatic open close |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204943602U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559909A (en) * | 2017-08-08 | 2018-01-09 | 珠海格力电器股份有限公司 | Range hood and control method thereof |
| CN109497818A (en) * | 2018-12-24 | 2019-03-22 | 浙江气派智能科技有限公司 | Start the intelligent machine for stir-frying dishes of kitchen ventilator after a kind of frying pan is heated |
| CN110542134A (en) * | 2019-09-06 | 2019-12-06 | 上海林内有限公司 | Linkage method of air quantity linkage control system of kitchen range and range hood |
| EP4276363A1 (en) * | 2022-05-13 | 2023-11-15 | Arçelik Anonim Sirketi | An exhaust hood with improved automatic operation performance |
| EP4276364A1 (en) * | 2022-05-13 | 2023-11-15 | Arçelik Anonim Sirketi | An exhaust hood with improved automatic operation performance |
-
2015
- 2015-07-17 CN CN201520519438.0U patent/CN204943602U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107559909A (en) * | 2017-08-08 | 2018-01-09 | 珠海格力电器股份有限公司 | Range hood and control method thereof |
| CN109497818A (en) * | 2018-12-24 | 2019-03-22 | 浙江气派智能科技有限公司 | Start the intelligent machine for stir-frying dishes of kitchen ventilator after a kind of frying pan is heated |
| CN110542134A (en) * | 2019-09-06 | 2019-12-06 | 上海林内有限公司 | Linkage method of air quantity linkage control system of kitchen range and range hood |
| EP4276363A1 (en) * | 2022-05-13 | 2023-11-15 | Arçelik Anonim Sirketi | An exhaust hood with improved automatic operation performance |
| EP4276364A1 (en) * | 2022-05-13 | 2023-11-15 | Arçelik Anonim Sirketi | An exhaust hood with improved automatic operation performance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160106 Termination date: 20170717 |