TWI431225B - Kitchen hood with detecting device, detecting method and testing method thereof - Google Patents

Description

Range hood with detection device, detection method and test method

The invention relates to a range hood, in particular to a range hood with a detection device having an automatic opening and closing function, a detection method and a test method.

The conventional range hood mainly uses a fan motor disposed inside the body to suck the soot into the body through the oil collecting group (including the oil net and the oil cup), and then discharges the soot to the outside to provide the performance of the exhaust fumes. . However, the conventional range hoods can only be operated manually, and do not have the function of automatic opening. People must repeatedly use the manual method to open and close the range hood, which is inconvenient to use and often causes sparseness. Open the range hood, causing the room to be filled with soot.

The main object of the present invention is to provide a range hood having a detecting device, a detecting method and a testing method, so that the range hood can automatically open and close, so that the range hood is convenient to use.

An embodiment of the present invention provides a range hood having a detecting device, comprising: a control circuit; a fan motor electrically connected to the control circuit; an automatic setting unit, the automatic setting unit being electrically connected to the a control unit; a number setting unit electrically connected to the control circuit; and at least one infrared temperature detector electrically connected to the control circuit.

An embodiment of the present invention further provides a method for detecting a range hood having a detecting device, comprising the steps of: providing a row of hoods including a control circuit, a fan motor, an automatic setting unit, a segment number setting unit, and an infrared temperature The detector is configured to select an automatic mode or a manual mode operation by using the automatic setting unit or the number of setting units; when the automatic mode is selected, the infrared temperature detecting device is used to detect the temperature under the range hood; Turning on the fan motor when the temperature is greater than a first set value; turning off the fan motor when detecting that the temperature is less than a second set value; and setting the unit by the number of segments when the user selects the manual mode Turn the fan motor on and off.

An embodiment of the present invention further provides a method for testing a range hood having a detecting device, comprising the steps of: providing a row of range hoods including a control circuit, a fan motor, an auxiliary lamp, an automatic setting unit, a segment number setting unit, and an infrared temperature The detector, the exhaust hood is connected with a power source, the automatic setting unit has an automatic button, and the number of setting unit has a number of segments; simultaneously pressing the automatic button and the number of segments in a first period of time after the power is turned on a second period of time to turn on the test mode; if the test mode is not turned on during the first period of time, the normal use mode is entered; when the test mode is turned on, the fan motor is turned on for the first run. The third period of time, then the fan motor is turned on for the second period of operation for a fourth period of time, and the auxiliary lamp is turned on for the third time and the fourth period; then the operation of the test mode is stopped.

The invention has the following beneficial effects: the invention is provided with an infrared temperature detector on the range hood for detecting the gas stove and the pot placed thereon, when the detected temperature is greater than the first set value , the fan motor is turned on, and the soot is discharged; when the detected temperature is less than the second set value, the fan motor is turned off, so that the range hood can automatically turn on and off.

In order to further understand the features and technical contents of the present invention, please refer to the following detailed description of the invention and the accompanying drawings. For reference and description, it is not intended to limit the invention.

[First Embodiment]

Referring to FIG. 1 , the present invention provides a range hood having a detecting device, including a control circuit 1, a fan motor 2, a heater 3, an auxiliary lamp 4, an automatic setting unit 5, and a number setting unit 6. And at least one (for example, two or several) infrared temperature detectors 7, each of which may be disposed on the body of the range hood (not shown). The control circuit 1 includes a main control circuit 11 and a plurality of drive circuits 12, 13, 14, 15, and 16. The control circuit 1 (the main control circuit 11) can be connected with an appropriate power source 8 for supplying the required power and power. A current fuse 81 can also be provided between the 8 and the control circuit 1. The driving circuits 12, 13, 14, 15, 16 are electrically connected to the main control circuit 11, and the control circuit 1 can be used to control and drive the fan motor 2, the heater 3, and the auxiliary lamp 4 and the like.

The fan motor 2, the heater 3 and the auxiliary lamp 4 are electrically connected to the first driving circuit 12 of the control circuit 1, and the control circuit 1 can drive the fan motor 2 to rotate, so that the fan motor 2 can pump the soot through the oil collecting group (including the oil net) The oil cup is inhaled into the body, and the soot is discharged outside to provide the performance of the exhaust fumes. The heater 3 is disposed in the body and has a function of heating and degreasing. The auxiliary light 4 is provided on the body and can be used to assist the illumination. Alternatively, the heater 3 can be omitted so that it does not have the function of heating and degreasing.

The second driving circuit 13 , the third driving circuit 14 , the fourth driving circuit 15 , and the fifth driving circuit 16 of the control circuit 1 can be electrically connected to a cleaning display lamp 101 , an automatic display lamp 102 , and a first segment display lamp respectively. 103 and a second segment of display lamps 104, which may be light-emitting elements such as light-emitting diodes (LEDs). When the cleaning indicator lamp 101 is turned on, it can be notified The user needs to clean and clean the range hood. When the automatic display light 102 is turned on, it indicates that the range hood is in the automatic mode. When the first segment display lamp 103 or the second segment display lamp 104 is turned on, it indicates that the fan motor 2 of the range hood is in the operation mode of the first segment or the second segment. In addition, the fan motor 2 can also perform the operation mode of the third stage, and the third stage display lamp (not shown) is provided as needed.

The present invention may further provide an ambient temperature detector 9 for detecting the ambient temperature for temperature correction compensation. The automatic setting unit 5, the number of segments setting unit 6, the infrared temperature detector 7 and the ambient temperature detector 9 are electrically connected to the control circuit 1 (main control circuit 11), and the automatic setting unit 5 and the number of segments setting unit 6 can be used. The setting selection is operated in the automatic or manual mode, and the automatic setting unit 5 and the number of segments setting unit 6 respectively have an automatic key and a manual key (not shown), so that the automatic or manual mode can be set by pressing the automatic key or the manual key (segment key). Operation.

[Second embodiment]

The invention provides a method for detecting a range hood with a detecting device, which can be used for detecting the temperature of a gas stove under the range hood and the temperature of the pot placed thereon for automatically opening and closing the range hood, including the following steps: (Please refer to FIG. 1): Firstly, a row of range hood is provided, which comprises a control circuit 1, a fan motor 2, an automatic setting unit 5, a number of stages setting unit 6, and an infrared temperature detector 7, etc., the range hood The appropriate power source 8 is connected; then the automatic setting unit 5 or the number of setting unit 6 is selected to set the automatic mode or the manual mode operation; when the user selects the automatic mode, the infrared temperature detector 7 is used to detect the lower part of the range hood (the temperature of the gas stove and the pot on it); When the detected temperature is greater than a first set value (for example, 130 ° C), the fan motor 2 is turned on, and the soot is discharged; when the detected temperature is less than a second set value (for example, 55 ° C), the fan motor 2 is turned off. When the user selects the manual mode, the fan motor 2 is set to be turned on by the number of stages setting unit 6, the soot is discharged, and the fan motor 2 is turned off.

The above method for detecting the range hood with the detecting device can more specifically include the following steps: First, a row of range hoods including a control circuit 1, a fan motor 2, a heater 3, an auxiliary lamp 4, an automatic setting unit 5, a number of stages setting unit 6, an infrared temperature detector 7, and an ambient temperature detector are provided. In the 9th unit, the range hood is connected with an appropriate power source 8 (please refer to FIG. 1, FIG. 2 and FIG. 2A) to prepare for starting operation, at this time, the cleaning indicator lamp 101, the automatic indicator lamp 102, and the first segment display lamp 103 are cleaned. And the second display light 104 and the like are turned on for a short time (for example, 1 second, etc.) and then turned off; then the automatic setting unit 5 or the number of segments setting unit 6 is selected to set the automatic mode or the manual mode operation, that is, by pressing the automatic key or The manual key (ie, the number of keys) is used to set the corresponding mode operation; when the user selects the automatic mode (see Fig. 1, Fig. 2 and Fig. 2A), the infrared temperature detector 7 is used to detect (read) The temperature of the bottom of the range hood (the gas stove and the pot on which the cooker is placed) is automatically turned on when the infrared temperature detector 7 detects that the temperature is greater than the first set value (for example, 130 ° C). Fan motor 2 performs the third stage operation and turns on the third stage display light (not shown), the soot is discharged; when the infrared temperature detector 7 detects that the temperature is between the first set value (for example, 130 ° C) and the third set value (for example, 85 ° C), the fan motor 2 is turned off. Three-stage operation and the third-stage display light, turn on the fan motor 2 for the second stage of operation and open the first The two-stage display lamp 104 is configured to pump the soot out; when the infrared temperature detector 7 detects that the temperature is between the third set value (for example, 85 ° C) and the second set value (for example, 55 ° C), the fan motor 2 is turned off. The second stage of operation and the second stage of the display lamp 104, the fan motor 2 is turned on for the first stage of operation and the first stage of the indicator light 103 is turned on, and the soot is discharged; when the infrared temperature detector 7 detects that the temperature is less than the second set value (for example, 55 ° C), the first operation of the fan motor 2 and the first segment of the display lamp 103 are turned off; when the fan motor 2 is turned on a certain number of times (for example, a multiple of 100 times), the cleaning indicator lamp 101 is turned on. It is used to inform the user that it is necessary to clean and clean the range hood; after the user cleans and cleans the range hood, the cleaning indicator lamp 101 is turned off; and then the ambient temperature detector 9 is further detected to detect the reading environment and infrared rays. Temperature, determine whether the ambient temperature is less than a preset value, for example, 40 ° C ± 0.2 ° C, if the ambient temperature is less than the preset value, the ambient temperature can be corrected, the present invention is determined by detecting the temperature graph, when the slope is equal to 1 time When in the 20 to 40 minutes (e.g. 30 minutes), it represents a stable equilibrium, ambient temperature compensation correction is completed, after checking the infrared temperature is equal to ambient temperature, to this end all operations. The ambient temperature compensation correction may also be performed before the automatic setting unit 5 or the number-of-segment setting unit 6 selects the setting automatic mode or the manual mode operation.

When the user selects the manual mode (please refer to FIG. 1, FIG. 3, FIG. 3A and FIG. 3B), the segment number setting unit 6 is used to set the fan motor 2 to be turned on and off, and the number of segments setting unit 6 can be a single button segment. Number (as shown in Figure 3) or the number of segments of the two-key, number key (such as three-key) segment (as shown in Figure 3A); if the number of segments using the number of single-key segments (segment number setting unit 6) To set the fan motor 2 to run (as shown in Figure 3), you can also use a single number of keys to press Controlling the fan motor 2 to perform the first operation (opening) and the first segment of the display lamp 103 to be turned on, or to control the fan motor 2 to perform the second operation (opening) and the second segment of the display lamp 104 to be turned on, or to control the fan motor 2 to perform the first The three-stage operation (open) and the third-segment display light are turned on, at this time, the automatic display lamp 102 is turned off, and the first-stage operation of the fan motor 2 and the first-segment display lamp 103 can be turned off by pressing the manual key, or the fan can be turned off. The second stage of operation of the motor 2 and the second stage display lamp 104, or the third stage operation of the fan motor 2 and the third stage display lamp; if the number of keys using two or several keys is used (segment number setting unit 6) When the fan motor 2 is turned on (as shown in FIG. 3A), the first stage of the button motor can be used to control the fan motor 2 to perform the first operation (opening) and the first segment of the display lamp 103 to be turned on, and the soot is discharged, or Controlling the fan motor 2 to perform the second-stage operation (opening) and the second-stage display lamp 104 to be turned on by the pressing of the second-stage key, pumping the soot out, or controlling the fan motor 2 to perform the third-stage operation by pressing the third-stage key ( Open) and the third segment of the indicator light is on, pumping The smoke is discharged, and the automatic display lamp 102 is turned off at this time; the first stage operation of the fan motor 2 and the first stage display lamp 103 can be turned off by pressing the manual key, or the second stage operation and the second stage display of the fan motor 2 can be turned off. The lamp 104, or the third stage operation of the fan motor 2 and the third stage display lamp are turned off; when the fan motor 2, the first segment display lamp 103, the second segment display lamp 104, and the third segment display lamp are all turned off, the fan The motor 2 is turned on again for a period of time (for example, 2 minutes, 3 minutes or more) (as shown in FIG. 3B), and the heater 3 is turned on for a period of time (10 to 20 minutes, for example, 15 minutes) for heating and degreasing. Operation, so far all the operations.

[Third embodiment]

The invention further provides a test method for a range hood with a detecting device The test mode can be tested to run the predetermined process in a short period of time to quickly test whether the various functions of the range hood of the present invention are normal, including the following steps: First, a row of range hoods including a control circuit 1, a fan motor 2, an auxiliary lamp 4, an automatic setting unit 5, a segment number setting unit 6, an infrared temperature detector 7, and an ambient temperature detector 9 are provided. The range hood is connected with an appropriate power source 8 (please refer to FIG. 1 and FIG. 4); at the beginning of the power supply for a certain period of time (can be within 60 seconds, for example, within 30 seconds, etc.), the automatic key and the number of segments are simultaneously pressed. The key is for a second period of time to open the test mode; the second period of time may be 1 to 5 seconds, for example 2 seconds; if the test mode is not turned on within the first period of time, the normal use mode is entered; when the test is turned on In the mode, the fan motor 2 is turned on for the first period of operation for a third period of time, the third period of time may be 20 to 180 seconds, for example, 60 seconds, and then the fan motor 2 is turned on for the second period of operation for a fourth period of time. The fourth period of time may be 20 to 180 seconds, for example, 60 seconds; when the test mode is turned on, the auxiliary lamp 4 is turned on for the third time and the fourth time; then the test mode is stopped (the fan motor is turned off 2) And auxiliary light 4) to resume normal use mode. However, the length of the first period, the second period, the third period and the fourth period are not limited, and may be appropriately increased or decreased as needed. In any of the above steps, the manual key (segment number setting unit 6) or the automatic key (automatic setting unit 5) can be pressed at any time, and the operation of the test mode is immediately stopped (the fan motor 2 and the auxiliary lamp 4 are turned off).

Referring to FIG. 5 and FIG. 6 , the present invention may further provide a rotary motor 10 , the rotary motor 10 is electrically connected to the control circuit 1 (the main control circuit 11 ), and the infrared temperature detector 7 is connected to the rotary motor 10 . Available spin The rotary motor 10 drives the infrared temperature detector 7 to rotate the scan.

The invention is arranged on the range hood with an infrared temperature detector 7 for detecting the gas stove and the pot placed thereon, and when detecting that the temperature is greater than the first set value, turning on the fan motor 2, The soot is discharged; when the detected temperature is less than the second set value, the fan motor 2 is turned off, so that the range hood can be automatically turned on and off, and the manual venting machine can be turned on and off without manual use. It is more convenient to use.

[Fourth embodiment]

In addition, the automatic mode of the present invention may be four segments, five segments or six segments in addition to two or three segments. The control circuit is electrically connected to the display lamps of the plurality of segments. When the infrared temperature detector detects that the temperature is at a predetermined set value, the fan motor is turned on to perform the corresponding number of segments and the corresponding number of display lights are turned on. .

In addition, the manual mode of the present invention may be four segments, five segments or six segments in addition to two or three segments. Referring to FIG. 7 and FIG. 7A , an embodiment in which the manual mode is four segments is disclosed. The control circuit is electrically connected to a plurality of segments of display lights, and the segment number setting unit is a single key segment number or a number of key segment segments, and the The number of segments setting unit controls the fan motor to perform a plurality of stages of operation and a corresponding number of display lights to be turned on. That is, the control circuit is electrically connected to the first to fifth segment display lamps, and the segment number setting unit can be a single button segment number (as shown in FIG. 7), and the fan motor is controlled by the segment number setting unit to perform the first to fifth The segment operation and the first to fifth segment display lights are turned on. The number of segments setting unit may be a number of key segments (as shown in FIG. 7A), and the segment number setting unit is used to control the fan motor to perform the first to fifth segments of operation and the first to fifth segments of the display lamps to be turned on.

However, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the patent protection of the present invention. The equivalent changes of the contents are all included in the scope of protection of the present invention and are combined with Chen Ming.

1‧‧‧Control circuit

11‧‧‧Master circuit

12‧‧‧First drive circuit

13‧‧‧Second drive circuit

14‧‧‧ Third drive circuit

15‧‧‧fourth drive circuit

16‧‧‧ fifth drive circuit

2‧‧‧Fan motor

3‧‧‧heater

4‧‧‧Auxiliary lights

5‧‧‧Automatic setting unit

6‧‧‧Segment setting unit

7‧‧‧Infrared temperature detector

8‧‧‧Power supply

81‧‧‧current fuse

9‧‧‧Environmental temperature detector

10‧‧‧Rotary motor

101‧‧‧ Cleaning indicator light

102‧‧‧Automatic display lights

103‧‧‧First display light

104‧‧‧Second paragraph display light

1 is a block diagram of a range hood of the present invention.

2 and 2A are flow charts of an automatic mode for detecting a range hood of the present invention.

3, 3A and 3B are flow charts of a manual mode of the method for detecting the range hood of the present invention.

4 is a flow chart of a test method for a range hood of the present invention.

Figure 5 is a block diagram showing another embodiment of the range hood of the present invention.

6 is a flow chart of an automatic mode of another embodiment of a method for detecting a range hood of the present invention.

7 and 7A are flow charts of a manual mode of another embodiment of a method for detecting a range hood of the present invention.

1‧‧‧Control circuit

11‧‧‧Master circuit

12‧‧‧First drive circuit

13‧‧‧Second drive circuit

14‧‧‧ Third drive circuit

15‧‧‧fourth drive circuit

16‧‧‧ fifth drive circuit

2‧‧‧Fan motor

3‧‧‧heater

4‧‧‧Auxiliary lights

5‧‧‧Automatic setting unit

6‧‧‧Segment setting unit

7‧‧‧Infrared temperature detector

8‧‧‧Power supply

81‧‧‧current fuse

9‧‧‧Environmental temperature detector

101‧‧‧ Cleaning indicator light

102‧‧‧Automatic display lights

103‧‧‧First display light

104‧‧‧Second paragraph display light

Claims (17)

An exhaust hood having a detecting device, comprising: a control circuit; a fan motor electrically connected to the control circuit; an automatic setting unit, the automatic setting unit being electrically connected to the control circuit; a setting unit, the segment number setting unit is electrically connected to the control circuit; at least one infrared temperature detector, the infrared temperature detector is electrically connected to the control circuit; and a rotary motor electrically connected to the The control circuit is connected to the rotary motor. An exhaust hood having a detecting device according to claim 1, further comprising an ambient temperature detector electrically connected to the control circuit. An exhaust hood having a detecting device according to claim 1 or 2, wherein the automatic setting unit has an automatic key, and the number of setting units has a number of segments. An exhaust hood having a detecting device according to claim 3, wherein the control circuit is at least electrically connected to a cleaning display lamp, an automatic display lamp, a first segment display lamp and a second segment display lamp. . An exhaust hood having a detecting device according to claim 1 or 2, further comprising a heater and an auxiliary lamp, the heater and the auxiliary lamp being electrically connected to the control circuit. A method for detecting a range hood having a detecting device, comprising the steps of: providing a row of range hoods including a control circuit, a fan motor, and an automatic setting a fixed unit, a segment number setting unit and an infrared temperature detecting device, wherein the control circuit is electrically connected to a rotating motor, the infrared temperature detecting device is connected to the rotating motor, and the rotating motor drives the infrared temperature detecting device to rotate and scan; The automatic setting unit or the number of setting unit selects to set the automatic mode or the manual mode operation; when the automatic mode is selected, the infrared temperature detecting device is used to detect the temperature under the range hood; when the temperature is detected to be greater than one Turning on the fan motor when a set value is reached; turning off the fan motor when detecting that the temperature is less than a second set value; and setting the unit to turn the fan on and off when the user selects the manual mode motor. The method for detecting a range hood having a detecting device according to claim 6, wherein the range hood further comprises an ambient temperature detector for performing ambient temperature correction. The method of detecting a range hood having a detecting device according to claim 6 or 7, wherein the control circuit is electrically connected to a first segment display lamp, a second segment display lamp and a third segment display a lamp, when the infrared temperature detector detects that the temperature is greater than the first set value, turning on the fan motor to perform a third segment operation and turning on the third segment display lamp; when the infrared temperature detector detects When the temperature is between the first set value and a third set value, the fan motor is turned on for a second period of operation and the second segment of the display light is turned on; when the infrared temperature detector detects that the temperature is located at the first When the third set value is between the second set value, the fan motor is turned on for a first period of operation and the first segment of the display light is turned on. The method of detecting a range hood having a detecting device according to claim 6 or 7, wherein the control circuit is electrically connected to a first segment display lamp, a second segment display lamp and a third segment display Lamp, the number of units is set as the number of single-key segments Using the segment number setting unit to control the fan motor to perform the first segment operation and the first segment display lamp to be turned on, or to control the fan motor to perform the second segment operation and the second segment display lamp to be turned on, or to control the fan motor to perform The third segment of operation and the third segment of the indicator light are turned on, and a manual button is used to close the first operation of the fan motor and the first segment of the display lamp, or to close the second segment of the fan motor and the second The segment displays the light, or turns off the third segment of the fan motor and the third segment of the display lamp. The method of detecting a range hood having a detecting device according to claim 6 or 7, wherein the control circuit is electrically connected to a first segment display lamp, a second segment display lamp and a third segment display a lamp, the number of setting units is a number of key segments, and the segment number setting unit is used to control the fan motor to perform the first segment operation and the first segment display lamp is turned on, or to control the fan motor to perform the second segment operation and the second The segment indicator light is turned on, or the fan motor is controlled to perform the third segment operation and the third segment display lamp is turned on, and a manual button is used to close the first operation of the fan motor and the first segment display lamp, or the same is turned off. The second operation of the fan motor and the second segment of the display lamp, or the third segment of the fan motor and the third segment of the display lamp are turned off. The method of detecting a range hood having a detecting device according to claim 8 , wherein the exhaust hood further comprises a heater and an auxiliary lamp, and the fan motor, the first segment display lamp, the first When the two-segment display lamp and the third-segment display lamp are both turned off, the fan motor is turned on for a while, and the heater is turned on to perform heating and de-oiling operations. The method of detecting a range hood having a detecting device according to claim 6 or 7, wherein the control circuit is electrically connected to a cleaning indicator lamp, and the cleaning indicator lamp is turned on when the fan motor is turned on for a certain number of times. The oil draining device with the detecting device as described in claim 6 or 7 The method for detecting a hood, wherein the control circuit is electrically connected to an automatic display light, and when the automatic mode is selected, the automatic display light is turned on. The method of detecting a range hood having a detecting device according to claim 6 or 7, wherein the control circuit is electrically connected to the plurality of display lamps, and the infrared temperature detecting device detects the temperature. When it is located at a predetermined set value, the fan motor is turned on to perform the corresponding number of operations and to turn on the corresponding number of display lights. The method of detecting a range hood having a detecting device according to the sixth or seventh aspect of the invention, wherein the control circuit is electrically connected to a plurality of display lights of the number of segments, wherein the number of setting units is a single key segment number or The number of key segments is used to control the fan motor to perform multi-stage operation and the corresponding number of display lights are turned on. A method for testing a range hood having a detecting device, comprising the steps of: providing a row of range hoods comprising a control circuit, a fan motor, an auxiliary lamp, an automatic setting unit, a segment number setting unit, and an infrared temperature detecting device, the row The automatic setting unit has an automatic key, and the number setting unit has a number of keys; and the automatic key and the number of keys are simultaneously pressed for a second period of time in a first period of time after the power is turned on, To enable the test mode; if the test mode is not turned on during the first period of time, the normal use mode is entered; when the test mode is turned on, the fan motor is turned on for the first period of operation for a third period of time, and then The fan motor is turned on for the second period of operation for a fourth period of time, and the auxiliary lamp is turned on for a third period of time and a fourth period of time; then the operation of the test mode is stopped. The method for testing a range hood having a detecting device according to claim 16, wherein the first period of time is 60 seconds, the second period of time is 1 to 5 seconds, and the third period of time is 20 Up to 180 seconds, the fourth period of time is 20 to 180 seconds.