CN216481154U - Opening and closing control structure and circuit thereof and side-suction type range hood - Google Patents
Opening and closing control structure and circuit thereof and side-suction type range hood Download PDFInfo
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- CN216481154U CN216481154U CN202122841471.3U CN202122841471U CN216481154U CN 216481154 U CN216481154 U CN 216481154U CN 202122841471 U CN202122841471 U CN 202122841471U CN 216481154 U CN216481154 U CN 216481154U
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Abstract
The embodiment of the application belongs to the technical field of kitchen appliances, provides an opening and closing control structure for have the kitchen appliances who opens and shuts the baffle, kitchen appliances includes the host computer, opening and closing control structure still includes: the push rod motor, the connecting rod and the controller are arranged on the push rod; wherein, the host is provided with a cavity; the opening and closing baffle is hinged to the side wall of the opening of the cavity, and a connector is arranged on the inner side wall of the opening and closing baffle; the push rod motor is connected to the inner side wall of the cavity and is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the connector; the controller is connected to the host and electrically connected with the push rod motor; the controller is used for detecting the current of the push rod motor and controlling the closing of the push rod motor or driving the push rod motor to rotate forwards or reversely so as to drive the opening and closing baffle to be opened or closed. The utility model provides a control structure opens and shuts can solve the motor because stifled commentaries on classics leads to the problem of damage.
Description
Technical Field
The application relates to the technical field of kitchens, in particular to an opening and closing control structure and a circuit thereof as well as a side-suction type range hood.
Background
Some kitchen appliances such as lampblack absorber, its keep off the cigarette board when opening and shutting or closing, open the position that needs and close to the position that needs and generally need to judge whether to work to the position for system input positional information, the cost can rise like this, if there is not the input of positional information, only judge through the stroke information whether to open and shut or close and target in place, then often can meet the condition that opens and shuts or close not target in place, in addition the motion in-process because the interference of structure can lead to the motor stall, the long-time stall of motor can lead to the motor to damage.
SUMMERY OF THE UTILITY MODEL
In view of this, the application provides an open-close control structure and circuit and side-suction type smoke ventilator thereof for solve kitchen appliance open-close baffle whether work is in place to and the motor leads to the problem of damage because of the lock-rotor.
In order to achieve one or a part of or all of the above or other objects, the present application provides an opening and closing control structure for a kitchen appliance having an opening and closing baffle, the kitchen appliance includes a main machine, and the opening and closing control structure further includes: the push rod motor, the connecting rod and the controller; wherein the content of the first and second substances,
the host is provided with a cavity; the opening and closing baffle is hinged to the side wall of the opening of the cavity, and a connector is arranged on the inner side wall of the opening and closing baffle; the push rod motor is connected to the inner side wall of the cavity and is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the connector; the controller is connected to the host and electrically connected with the push rod motor;
the controller is used for detecting the current of the push rod motor and controlling the closing of the push rod motor or driving the push rod motor to rotate forwards or reversely so as to drive the opening and closing baffle to be opened or closed.
Further, the push rod motor comprises a motor, a gearbox, a push rod shell, a push rod and a connecting seat; wherein the content of the first and second substances,
the connecting seat is fixed on the inner side wall of the cavity, the push rod is arranged in the push rod shell and is in sliding connection with the push rod shell, the side wall of the push rod shell is connected with the connecting seat, one end of the push rod shell is connected with the gearbox, the input end of the gearbox is connected with the motor, the output end of the gearbox is connected with one end of the push rod, and the other end of the push rod is hinged with one end of the connecting rod.
Further, the opening and closing control structure further comprises: the control panel is arranged on the outer side wall of the opening and closing baffle, and the illuminating lamp is arranged on the host; the control panel and the illuminating lamp are electrically connected with the controller.
In order to achieve one or a part of or all of the above or other objects, the present application further provides an opening and closing control circuit for the opening and closing control structure of any one of the above, wherein the opening and closing control circuit is configured to detect a current of a push rod motor and control a forward rotation or a reverse rotation of the push rod motor to drive the opening and closing shutter to open or close, and includes:
chip U1, chip U2, resistor R1, resistor R2, resistor R3, resistor R4, capacitor C1, capacitor C2, capacitor C3, power supply EC1, power supply EC2 and a driving power supply; wherein the content of the first and second substances,
a negative electrode of the power supply EC1 is connected with a VSS pin of a chip U1 and one end of a capacitor C1, a positive electrode of the power supply EC1 is connected with a VCC pin of the chip U1, the other end of the capacitor C1, one end of the capacitor C2 and a Vref pin of the chip U2, the other end of the capacitor C2 is connected with a GND pin of the chip U2, a negative electrode of the power supply EC2, one end of the capacitor C2 and one end of a resistor R2, a P2 pin of the chip U2 is connected with a positive electrode of the power supply EC2, the other end of the capacitor C2 and a positive electrode of a driving power supply, a P2 pin of the chip U2 is connected with a first power supply connection line of the push rod motor, a P2 pin of the chip U2 is connected with a second power supply connection line of the push rod MW motor, a P2 pin of the chip U2 is connected with one end of the resistor R2 and the other end of the resistor R2, the other end of the resistor R2 is connected with a V pin of the U2, and one end of the pin of the chip U2 is connected with the resistor 2, the other end of the resistor R3 is connected with an INT1 pin of the chip U2, a P2 pin of the chip U1 is connected with one end of the resistor R2, and the other end of the resistor R2 is connected with an INT2 pin of the chip U2;
the negative electrode of the power supply EC1, the other end of the capacitor C2, the GND pin of the chip U2, the negative electrode of the power supply EC2, one end of the capacitor C3 and one end of the resistor R4 are grounded.
Further, the operating voltage of the driving power supply is 12V or 24V, and the operating current is 5A.
Further, the resistor R1, the resistor R2, the resistor R3, and the resistor R4 are all chip resistors.
Further, the resistor R1, the resistor R2, the resistor R3, and the resistor R4 are all 1K Ω.
Further, the open/close control circuit further comprises: key K1, key K2, key K3, key K4, key K5, resistor R5, resistor R6, resistor R7, resistor R8, and resistor R9; wherein the content of the first and second substances,
the button K1 is connected resistance R5's one end, chip P25 pin is connected to resistance R5's the other end, button K2 is connected resistance R6's one end, chip P24 pin is connected to resistance R6's the other end, button K3 connects resistance R7's one end, chip P23 pin is connected to resistance R7's the other end, button K4 connects resistance R8's one end, chip P22 pin is connected to resistance R8's the other end, button K5 connects resistance R9's one end, chip P21 pin is connected to resistance R9's the other end.
Further, the resistor R5, the resistor R6, the resistor R7, the resistor R8, and the resistor R9 are all 1K Ω.
In order to achieve one or part or all of the above purposes or other purposes, the application also provides a side-suction type range hood, which comprises the opening and closing control structure and the opening and closing control circuit.
The embodiment of the application has the following beneficial effects:
the application provides a control structure opens and shuts for kitchen appliance with baffle opens and shuts, kitchen appliance includes the host computer, and the control structure that opens and shuts still includes: the push rod motor, the connecting rod and the controller; wherein, the host is provided with a cavity; the opening and closing baffle is hinged on the side wall of the opening of the cavity, and a connector is arranged on the inner side wall of the opening and closing baffle; the push rod motor is connected to the inner side wall of the cavity and hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the connector; the controller is connected to the host and is electrically connected with the push rod motor; the controller is used for detecting the current of the push rod motor and controlling the closing of the push rod motor or driving the push rod motor to rotate forwards or reversely so as to drive the opening and closing baffle to be opened or closed. The application provides a control structure that opens and shuts can solve the motor because stifled commentaries on classics leads to opening and shutting not in place, perhaps the motor leads to the problem of damage for a long time stifled commentaries on classics.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Wherein:
fig. 1 is a schematic structural diagram of an embodiment of an opening and closing control structure of the present application;
FIG. 2 is a schematic structural diagram of a push rod motor in an embodiment of the opening and closing control structure of the present application;
fig. 3 is a schematic structural diagram of the switching control circuit of the present application;
fig. 4 is a schematic structural view of an embodiment of the side draft range hood of the present application.
Reference numerals: 1. a host; 2. a push rod motor; 21. a motor; 22. a gearbox; 23. a push rod housing; 24. a push rod; 25. a connecting seat; 3. a connecting rod; 4. a controller; 5. a folding baffle plate; 51. a control panel; 6. a connecting head.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
Referring to fig. 1 to 3, a first embodiment of the present application provides an opening and closing control structure for a kitchen appliance having an opening and closing baffle 5, the kitchen appliance includes a host 1, and the opening and closing control structure further includes: a push rod motor 2, a connecting rod 3 and a controller 4; wherein the content of the first and second substances,
the host 1 is provided with a cavity; the opening and closing baffle 5 is hinged on the side wall of the opening of the cavity, and the inner side wall of the opening and closing baffle 5 is provided with a connector 6; the push rod motor 2 is connected to the inner side wall of the cavity and hinged to one end of the connecting rod 3, and the other end of the connecting rod 3 is hinged to the connector 6; the controller 4 is connected to the host 1 and is electrically connected with the push rod motor 2;
the controller 4 is used for detecting the current of the push rod motor 2 and controlling the closing of the push rod motor 2 or driving the push rod motor to rotate forwards or backwards so as to drive the opening and closing baffle 5 to open or close.
In this embodiment, the kitchen appliance refers to an appliance having a main unit 1, and the main unit 1 has a cavity therein, and the cavity is provided with an opening and closing baffle 5, such as a side-suction range hood, an oven or a disinfection cabinet. For example, fig. 3 shows an application example of the opening and closing control structure in the side-suction type range hood, at this time, the opening and closing baffle 5 is a smoke baffle of the side-suction type range hood, and the push rod motor 2 drives the connecting rod 3 to further drive the smoke baffle to open and close, so as to achieve the opening or closing effect. In practical application, in the normal opening or closing process of the motor 21, the current is a small stable value, when the opening or closing is completely locked, the current reaches a maximum value, when the opening or closing is slightly locked, the current fluctuates and the current value is at an intermediate value which is larger than the stable value and smaller than the maximum value, so that whether the opening and closing baffle 5 is completely opened or closed can be judged according to the current value of the motor 21 and the stroke time of opening or closing the opening and closing baffle 5. For example, the time from the start to the full open of the opening and closing baffle 5 is 5S, the current value is 0.5A, and the full locked-rotor current is 1.5A; when the electric appliance is started and the opening and closing baffle 5 is opened, if the current value of the motor 21 is 0.5A when the electric appliance is opened and lasts for 5S, the opening and closing baffle 5 is judged to be completely opened at the moment, and the motor 21 is stopped; if the electrical appliance is started and the opening and closing baffle 5 is opened, if the current value of the motor 21 is 0.5A during opening, the state lasts for 2S, and then the current value of the motor 21 fluctuates between 0.5A and 1.5A, the opening and closing baffle 5 is judged to be in a micro-locked-rotor state, when the time reaches 5S, the opening and closing baffle 5 cannot be completely opened, at the moment, the motor 21 is not stopped, and after 10S, the current value is 1.5A, at the moment, because the opening and closing baffle 5 is completely opened and cannot be opened any more, the complete locked-rotor occurs, the opening and closing baffle 5 is judged to be completely opened, and the motor 21 is stopped; if the current value of the motor 21 is 0.5A and lasts for 2S when the motor is started, then the current value of the motor 21 fluctuates between 0.5A and 1.5A, then the current value is 1.5A and the distance from the starting time is less than 5S, the opening and closing baffle 5 is judged to be not completely opened and completely locked, at the moment, an object blocks the opening and closing baffle 5, or the electric appliance fails, the electric appliance gives an alarm, and the user cleans the object or eliminates the failure.
In view of the above opening and closing control structure, the present application also proposes a second embodiment, wherein the push rod motor 2 includes a motor 21, a gear box 22, a push rod housing 23, a push rod 24 and a connecting seat 25; wherein the content of the first and second substances,
the connecting seat 25 is fixed on the inner side wall of the cavity, the push rod 24 is arranged in the push rod shell 23 and is in sliding connection with the push rod shell 23, the side wall of the push rod shell 23 is connected with the connecting seat 25, one end of the push rod shell 23 is connected with the gearbox 22, the input end of the gearbox 22 is connected with the motor 21, the output end of the gearbox 22 is connected with one end of the push rod 24, and the other end of the push rod 24 is hinged with one end of the connecting rod 3.
To above-mentioned control structure that opens and shuts, this application still provides the third embodiment, and wherein, the control structure that opens and shuts still includes: the control panel 51 is arranged on the outer side wall of the opening and closing baffle plate 5, and the illuminating lamp is arranged on the host 1; the control panel 51 and the illumination lamp are electrically connected to the controller 4.
In this embodiment, the control panel 51 is provided with keys for manual operation by a user to turn on, off, turn on or off the illumination lamp.
The fourth embodiment of the present application further provides an opening and closing control circuit, which is used in any one of the opening and closing control structures, and the opening and closing control circuit is used for detecting the current of the push rod motor 2 and controlling the forward rotation or reverse rotation of the push rod motor 2 to drive the opening and closing baffle 5 to open or close, and includes:
chip U1, chip U2, resistor R1, resistor R2, resistor R3, resistor R4, capacitor C1, capacitor C2, capacitor C3, power supply EC1, power supply EC2 and a driving power supply; wherein the content of the first and second substances,
the negative pole of a power supply EC is connected with the VSS pin of a chip U and one end of a capacitor C, the positive pole of the power supply EC is connected with the VCC pin of the chip U, the other end of the capacitor C, one end of the capacitor C and the Vref pin of the chip U, the other end of the capacitor C is connected with the GND pin of the chip U, the negative pole of the power supply EC, one end of the capacitor C and one end of a resistor R, the P pin of the chip U is connected with the positive pole of the power supply EC, the other end of the capacitor C and the positive pole of a driving power supply, the P pin of the chip U is connected with a first power supply connecting wire of a push rod motor 2, the P pin of the chip U is connected with a second power supply connecting wire of the push rod motor 2, the P pin of the chip U is connected with one end of a resistor R, the other end of the resistor R is connected with the V pin of the chip U, the P pin of the chip U is connected with one end of the resistor R, the other end of the INT pin of the chip U is connected with the P pin of the chip U, the P pin of the resistor R, the other end of the resistor R2 is connected with an INT2 pin of the chip U2;
the negative electrode of the power supply EC1, the other end of the capacitor C2, the GND pin of the chip U2, the negative electrode of the power supply EC2, one end of the capacitor C3 and one end of the resistor R4 are grounded.
In view of the above-mentioned switching control circuit, the present application also provides a fifth embodiment, in which the driving power supply has an operating voltage of 12V or 24V and an operating current of 5A.
In view of the above switching control circuit, the present application also proposes a sixth embodiment, in which the resistor R1, the resistor R2, the resistor R3, and the resistor R4 are all chip resistors.
In view of the above-mentioned switching control circuit, the present application also proposes a seventh embodiment, in which the resistor R1, the resistor R2, the resistor R3, and the resistor R4 are all 1K Ω.
To the above-mentioned control circuit that opens and shuts, the present application also proposes an eighth embodiment, wherein the control circuit that opens and shuts further includes: key K1, key K2, key K3, key K4, key K5, resistor R5, resistor R6, resistor R7, resistor R8, and resistor R9; wherein the content of the first and second substances,
the key K1 is connected with one end of a resistor R5, the other end of the resistor R5 is connected with a pin of a chip P25, the key K2 is connected with one end of a resistor R6, the other end of the resistor R6 is connected with a pin of a chip P24, the key K3 is connected with one end of a resistor R7, the other end of the resistor R7 is connected with a pin of a chip P23, the key K4 is connected with one end of a resistor R8, the other end of the resistor R8 is connected with a pin of a chip P22, the key K5 is connected with one end of a resistor R9, and the other end of the resistor R9 is connected with a pin of a chip P21.
In view of the above-mentioned switching control circuit, the present application also proposes a ninth embodiment, in which the resistor R5, the resistor R6, the resistor R7, the resistor R8, and the resistor R9 are all 1K Ω.
In the fourth to ninth embodiments, the resistors R1 to R9 may be chip resistors, which are resistant to moisture and high temperature and have small temperature coefficient, and can greatly save the circuit space cost and make the design more fine. The power supply EC1 is a working power supply of the chip U1, the power supply EC2 is a working power supply of the chip U2, and taking the forward rotation of the motor 21 to open and close the baffle 5 as an example, the circuit working process is as follows:
the pin P1 of the chip U1 sends out a high level, the INT1 of the chip U2 is at a high level, and at this time, current flows in from the pin P5 of the chip U2, flows to the motor 21 (CN 1 in the circuit diagram) from the pin P6, flows into the pin P8, flows out from the pin P7, flows into the pin P3 of the chip U1 through the V MW loop (at this time, the chip U1 obtains the working current of the motor 21), and flows into the ground pin through the U1, so that a complete forward rotation loop is formed. If the pin P2 of the chip U1 sends out a high level, the INT2 of the chip U2 is at the high level, and at this time, the current flows in from the pin P5 of the chip U2, flows to the motor 21 (CN 1 in the circuit diagram) from the pin P8, flows into the pin P6, flows out from the pin P7, flows into the pin P3 of the chip U1 through the V MW loop (at this time, the chip U1 obtains the working current of the motor 21), and flows into the ground pin from the pin U1, so as to form a complete reverse loop. When the motor 21 works, the chip U1 controls according to the obtained current, and the control process has been described in detail in the first embodiment and will not be described again.
The keys K1 to K5 may be configured as an on/off key, a power key, a lamp key, a timer key, etc. depending on the type of the chip and the actual requirements, and the number and types of the keys may be increased or decreased.
Referring to fig. 4, the present application tenth further provides a side-suction type range hood, which includes the opening and closing control structure of any one of the first to third embodiments and the opening and closing control circuit of any one of the fourth to ninth embodiments.
It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields, and all the equivalent structures are within the protection scope of the present application.
Claims (10)
1. The utility model provides a control structure opens and shuts for kitchen appliance with baffle opens and shuts, kitchen appliance includes the host computer, its characterized in that: the opening and closing control structure further comprises: the push rod motor, the connecting rod and the controller; wherein the content of the first and second substances,
the host is provided with a cavity; the opening and closing baffle is hinged to the side wall of the opening of the cavity, and a connector is arranged on the inner side wall of the opening and closing baffle; the push rod motor is connected to the inner side wall of the cavity and is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the connector; the controller is connected to the host and electrically connected with the push rod motor;
the controller is used for detecting the current of the push rod motor and controlling the closing of the push rod motor or driving the push rod motor to rotate forwards or reversely so as to drive the opening and closing baffle to be opened or closed.
2. The opening and closing control structure according to claim 1, wherein: the push rod motor comprises a motor, a gearbox, a push rod shell, a push rod and a connecting seat; wherein the content of the first and second substances,
the connecting seat is fixed on the inner side wall of the cavity, the push rod is arranged in the push rod shell and is in sliding connection with the push rod shell, the side wall of the push rod shell is connected with the connecting seat, one end of the push rod shell is connected with the gearbox, the input end of the gearbox is connected with the motor, the output end of the gearbox is connected with one end of the push rod, and the other end of the push rod is hinged with one end of the connecting rod.
3. The opening and closing control structure according to claim 1, wherein: the opening and closing control structure further comprises: the control panel is arranged on the outer side wall of the opening and closing baffle, and the illuminating lamp is arranged on the host; the control panel and the illuminating lamp are electrically connected with the controller.
4. An open-close control circuit, characterized in that: the opening and closing control structure for any one of claims 1 to 3, wherein the opening and closing control circuit is used for detecting the current of a push rod motor and controlling the forward rotation or the reverse rotation of the push rod motor to drive the opening and closing baffle to open or close, and comprises:
chip U1, chip U2, resistor R1, resistor R2, resistor R3, resistor R4, capacitor C1, capacitor C2, capacitor C3, power supply EC1, power supply EC2 and a driving power supply; wherein, the first and the second end of the pipe are connected with each other,
a negative electrode of the power supply EC1 is connected with a VSS pin of a chip U1 and one end of a capacitor C1, a positive electrode of the power supply EC1 is connected with a VCC pin of the chip U1, the other end of the capacitor C1, one end of the capacitor C2 and a Vref pin of the chip U2, the other end of the capacitor C2 is connected with a GND pin of the chip U2, a negative electrode of the power supply EC2, one end of the capacitor C2 and one end of a resistor R2, a P2 pin of the chip U2 is connected with a positive electrode of the power supply EC2, the other end of the capacitor C2 and a positive electrode of a driving power supply, a P2 pin of the chip U2 is connected with a first power supply connection line of the push rod motor, a P2 pin of the chip U2 is connected with a second power supply connection line of the push rod MW motor, a P2 pin of the chip U2 is connected with one end of the resistor R2 and the other end of the resistor R2, the other end of the resistor R2 is connected with a V pin of the U2, and one end of the pin of the chip U2 is connected with the resistor 2, the other end of the resistor R3 is connected with an INT1 pin of the chip U2, a P2 pin of the chip U1 is connected with one end of the resistor R2, and the other end of the resistor R2 is connected with an INT2 pin of the chip U2;
the negative electrode of the power supply EC1, the other end of the capacitor C2, the GND pin of the chip U2, the negative electrode of the power supply EC2, one end of the capacitor C3 and one end of the resistor R4 are grounded.
5. The switching control circuit of claim 4, wherein: the working voltage of the driving power supply is 12V or 24V, and the working current is 5A.
6. The switching control circuit of claim 4, wherein: the resistor R1, the resistor R2, the resistor R3 and the resistor R4 are all chip resistors.
7. The switching control circuit of claim 6, wherein: the resistor R1, the resistor R2, the resistor R3 and the resistor R4 are all 1K Ω.
8. The switching control circuit of claim 4, wherein: the open-close control circuit further comprises: key K1, key K2, key K3, key K4, key K5, resistor R5, resistor R6, resistor R7, resistor R8, and resistor R9; wherein the content of the first and second substances,
the button K1 is connected resistance R5's one end, chip P25 pin is connected to resistance R5's the other end, button K2 is connected resistance R6's one end, chip P24 pin is connected to resistance R6's the other end, button K3 connects resistance R7's one end, chip P23 pin is connected to resistance R7's the other end, button K4 connects resistance R8's one end, chip P22 pin is connected to resistance R8's the other end, button K5 connects resistance R9's one end, chip P21 pin is connected to resistance R9's the other end.
9. The switching control circuit of claim 8, wherein: the resistor R5, the resistor R6, the resistor R7, the resistor R8 and the resistor R9 are all 1K Ω.
10. A side-draft range hood is characterized in that: the side-draft range hood includes the opening and closing control structure of any one of claims 1 to 3 and the opening and closing control circuit of any one of claims 4 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122841471.3U CN216481154U (en) | 2021-11-18 | 2021-11-18 | Opening and closing control structure and circuit thereof and side-suction type range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122841471.3U CN216481154U (en) | 2021-11-18 | 2021-11-18 | Opening and closing control structure and circuit thereof and side-suction type range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216481154U true CN216481154U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122841471.3U Active CN216481154U (en) | 2021-11-18 | 2021-11-18 | Opening and closing control structure and circuit thereof and side-suction type range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216481154U (en) |
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2021
- 2021-11-18 CN CN202122841471.3U patent/CN216481154U/en active Active
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