CN208806761U - Dual-motors Driving kitchen ventilator - Google Patents

Abstract

The utility model provides a kind of Dual-motors Driving kitchen ventilator, belongs to lift kitchen ventilator technical field.A kind of Dual-motors Driving kitchen ventilator provided by the embodiment of the utility model, including crane and the double-motor driving device for driving the crane to move up and down；The double-motor driving device includes that driving circuit and the first motor and the second motor, the positive terminals and negative terminals of first motor and the positive terminals of the second motor that are connect by connecting element with the output port of the driving circuit and negative terminals are connected on the contrary on the output port of driving circuit.First motor and the second motor synchronize under the control for the same control signal that driving circuit exports to be rotated backward, and synchronous effect is more preferable.

Description

Dual-motors Driving kitchen ventilator

Technical field

The utility model relates to lift kitchen ventilator technical fields, in particular to a kind of Dual-motors Driving kitchen ventilator.

Background technique

Kitchen ventilator is a kind of for purifying the kitchen appliance of kitchen environment, and can burn cooking stove the exhaust gas generated and culinary art The oil smoke generated in the process is taken away rapidly, and outdoor is discharged, to achieve the purpose that purify kitchen environment.Since oil smoke was rising Speed faster or slower in journey, and slow oil smoke will be located at the bottom of oil smoke faster, and spread around.Due to Fume guide mechanism in kitchen ventilator can not be controlled and be adjusted, and the oil smoke for the fast speed being located above can be inhaled by kitchen ventilator It walks, and slow a part of oil smoke then can cause oil smoke assimilation effect not thorough enough from escaping because kitchen ventilator height is higher Bottom.

For this purpose, occurring liftable kitchen ventilator in the market in recent years, two direct current generators are mounted on the two sides of kitchen ventilator, Drive crane rise or fall, the fume guide mechanism of kitchen ventilator shell or kitchen ventilator is connected on crane, realize rise or under Drop.It realizes rising or falling for crane, two direct current generators is needed oppositely to rotate synchronously each other.Existing kitchen ventilator exists When controlling two direct current generators, synchronous effect is bad, is easy to cause crane impaired.

Utility model content

For above-mentioned problems of the prior art, the utility model provides a kind of Dual-motors Driving kitchen ventilator, can To realize the synchronous backward rotation of two motors.

In a first aspect, the utility model embodiment provides a kind of Dual-motors Driving kitchen ventilator, including crane and drive The double-motor driving device that the crane moves up and down；The double-motor driving device includes driving circuit and by grafting group The first motor and the second motor that part is connect with the output port of the driving circuit；

The positive terminals and negative terminals of the first motor and the positive terminals of second motor and negative terminals phase It instead is connected on the output port of the driving circuit, so that the first motor and second motor are in the driving electricity It synchronizes and rotates backward under the control on road.

With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect, In, the driving circuit includes the first relay and the second relay for controlling chip and connecting with the control chip；It is described Output port passes through the first relay and the second relay connection power supply respectively；

The output port includes first port and second port；When first relay is connected, the first port Connect the anode of the power supply；When second relay is connected, the second port connects the anode of the power supply.

The possible embodiment of with reference to first aspect the first, the utility model embodiment provide the of first aspect Two kinds of possible embodiments, wherein the first port connects the anode of the power supply by first relay, and leads to Cross first resistor ground connection；The second port connects the anode of the power supply by second relay, and passes through described the One resistance eutral grounding.

The possible embodiment of second with reference to first aspect, the utility model embodiment provide the of first aspect Three kinds of possible embodiments, wherein described device further includes the diverter branch in parallel with the first resistor；The shunting branch Road is provided with test point, and the test point is connect with the control chip；The chip that controls is according to the electricity of the test point Rheology controls the first motor and the stalling of the second motor.

The third possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect Four kinds of possible embodiments, wherein the diverter branch includes the capacitor being connected in series and second resistance；The detection point Between the capacitor and the second resistance.

The possible embodiment of second with reference to first aspect, the utility model embodiment provide the of first aspect Five kinds of possible embodiments, wherein be connected with first diode between the first port and the first resistor；Described The second diode is connected between Two-port netwerk and the first resistor.

The possible embodiment of with reference to first aspect the first, the utility model embodiment provide the of first aspect Six kinds of possible embodiments, wherein the positive terminals of the first motor connect the first port of the output port；It is described The positive terminals of second motor connect the second port of the output port.

The possible embodiment of with reference to first aspect the first, the utility model embodiment provide the of first aspect Seven kinds of possible embodiments, wherein described device further includes the limit switch connecting with the control chip；When the limit When closing the switch, the first relay described in the control chip controls and second relay are disconnected.

The 7th kind of possible embodiment with reference to first aspect, the utility model embodiment provide the of first aspect Eight kinds of possible embodiments, wherein the double-motor driving device includes two limit switches, and the first limit switch is set to The top of the stroke of the crane, the second limit switch are set to the bottom of the stroke of the crane.

Any of the above-described kind of possible embodiment with reference to first aspect, the utility model embodiment provide first aspect The 8th kind of possible embodiment, wherein the first motor of the double-motor driving device and the second motor are connected to The left and right sides of the crane.

The utility model embodiment bring it is following the utility model has the advantages that

A kind of Dual-motors Driving kitchen ventilator provided by the embodiment of the utility model, wherein double-motor driving device includes driving Dynamic circuit and the first motor being connect with the output port of the driving circuit by connecting element and the second motor, first motor Positive terminals and the positive terminals and negative terminals of negative terminals and the second motor be connected to the output of driving circuit on the contrary On port.First motor and the second motor synchronize reversed turn under the control for the same control signal that driving circuit exports Dynamic, synchronous effect is more preferable.

Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating Specifically noted structure is achieved and obtained in book, claims and attached drawing.

To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and Cooperate appended attached drawing, is described in detail below.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the attachment structure schematic diagram of double-motor driving device provided by an embodiment of the present invention；

Fig. 2 is the circuit diagram of driving circuit provided by an embodiment of the present invention；

Fig. 3 is the circuit diagram that driving circuit provided by an embodiment of the present invention is connect with two motors；

Fig. 4 is the structural schematic diagram of kitchen ventilator provided by an embodiment of the present invention.

Icon: the first connector of 1-；2- deconcentrator；21- positive wire；22- cathode conductor；The first harness of 3-；31- first Motor positive wire；32- first motor cathode conductor；The second connector of 4-；5- first motor；The second harness of 6-；The second electricity of 61- Machine cathode conductor；62- the second motor positive wire；7- third connector；The second motor of 8-；9- control assembly.

Specific embodiment

To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing to this The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model a part is real Example is applied, instead of all the embodiments.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can To arrange and design with a variety of different configurations.Therefore, below to the embodiments of the present invention provided in the accompanying drawings Detailed description is not intended to limit the range of claimed invention, but is merely representative of the selected reality of the utility model Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work The every other embodiment obtained, fall within the protection scope of the utility model.

For the bad problem of two motor synchronous effects of existing kitchen ventilator, the utility model embodiment provides one Kind Dual-motors Driving kitchen ventilator, is situated between in detail below in conjunction with Dual-motors Driving kitchen ventilator of the specific embodiment to the utility model It continues.

The utility model embodiment provides a kind of Dual-motors Driving kitchen ventilator, as shown in Figures 1 to 4, including crane And double-motor driving device.Double-motor driving device includes driving circuit and the output port by connecting element and driving circuit The first motor 5 of connection and the second motor 8.First motor 5 and the second motor 8 are connected to the left and right sides of crane, use It moves up and down in drive crane.Kitchen ventilator is mounted on crane, is moved up and down with crane.

Wherein, the positive terminals and negative terminals of first motor 5 are opposite with the positive terminals of the second motor 8 and negative terminals Ground is connected on the output port of driving circuit, so that first motor 5 and the second motor 8 can be same under the control of driving circuit Step rotates backward.

As an application scenarios of the present embodiment, first motor 5 and the second motor 8 are mounted on the crane of kitchen ventilator When two sides, first motor 5 and 8 synchronous backward of the second motor rotate, crane is driven to rise or fall.

As shown in Fig. 2, driving circuit includes the first relay KR1 and second for controlling chip and connecting with control chip Relay KR2.Control chip can use MCU (Micro Control Unit, micro-control unit), single-chip microcontroller (Single Chip Microcomputer) or DSP (Digital Signal Processing) chip etc..Illustratively, specific real one It applies in example, control chip is using a single-chip microcontroller in the AT89C20 series of Atmel company production.

Motor_1 and motor_2 in Fig. 2 are the pin for controlling chip.First relay KR1 connection pin motor_1, Control the on-off that chip controls the first relay KR1 by pin motor_1.For example, when pin motor_1 exports high level When, the first relay KR1 is attracted.Second relay KR2 connection pin motor_2, control chip are controlled by pin motor_2 Make the on-off of the second relay KR2.For example, the second relay KR2 is attracted when pin motor_2 exports high level.First Relay KR1 and the second relay KR2 can use two keys relay.

Output port CN1 passes through the first relay KR1 and the second relay KR2 connection power supply POWER respectively.The power supply For powering for first motor 5 and the second motor 8.Optionally, first motor 5 and the second motor 8 are direct current generator, above-mentioned power supply For DC power supply, which can be the power supply that AC power source (mains supply) obtains after AC/DC changeover switch.

Output port CN1 includes first port and second port.First port passes through the first relay KR1 connection power supply Anode, and be grounded by first resistor R1.Second port passes through the by the anode of the second relay KR2 connection power supply One resistance R1 ground connection.Optionally, first diode D1 is connected between first port and first resistor R1, first diode D1's Positive terminal connects first port, and the negative pole end of first diode D1 connects first resistor R1.Second port and first resistor R1 it Between be connected with the positive terminal connection second port of the second diode D2, the second diode D2, the negative pole end of the second diode D2 connects Meet first resistor R1.

Optionally, driving circuit can also include the diverter branch in parallel with first resistor R1.Diverter branch includes series connection The capacitor C1 and second resistance R2 of connection.One end of capacitor C1 is grounded, and the other end connects second resistance R2.The electricity of capacitor C1 and second It is provided with test point between resistance R2, which connect with the pin mot_1AD of control chip.It controls chip and passes through the test point Detect the circuit variation of diverter branch.When first motor 5 or the second motor 8 are there are when the case where stall, detected on diverter branch Change to micro-current, controls chip controls first motor 5 and the second motor 8 stalls.It should be noted that diverter branch and inspection The setting of measuring point is not limited to aforesaid way, can also there is other forms.

Optionally, driving circuit further includes that the limit switch connecting with control chip controls core when limit switch closure Piece control the first relay KR1 and the second relay KR2 is disconnected.For example, as shown in figure 3, driving circuit may include two Limit switch: the first limit switch J1 and the second limit switch J2.The top of the stroke of crane is arranged in first limit switch J1 The bottom of the stroke of crane is arranged in portion, the second limit switch J2.One end of first limit switch J1 connects high level, the The pin motor_H of the other end connection control chip of one limit switch J1.When crane rises to top, the first limit is touched Bit switch J1 is attracted, and the pin motor_H for controlling chip receives high level, controls chip controls first motor 5 and the second electricity Machine 8 stalls.

Similarly, one end of the second limit switch J2 connects high level, the other end connection control core of the second limit switch J2 The pin motor_L of piece.When crane drops to bottom, touches the second limit switch J2 and be attracted, control the pin of chip Motor_L receives high level, controls chip controls first motor 5 and the stalling of the second motor 8.

As shown in figures 1 and 3, first motor 5 and the second motor 8 pass through the output port of connecting element and driving circuit CN1 connection.The first port of the positive terminals connection output port of first motor 5；The positive terminals of second motor 8 connect output The second port of port.Specifically, above-mentioned connecting element may include the first connector 1, the second connector 4 and third connector 7.First connector 1 (CN2 shown in Fig. 3) is connected on the output port CN1 of driving circuit.It is connected on first connector 1 Positive wire 21 be divided into first motor positive wire 31 and the second electrode negative conducting wire 61, the first connector 1 after deconcentrator 2 The cathode conductor 22 of upper connection is divided into first motor cathode conductor 32 and the second motor positive wire 62 after deconcentrator 2.

First motor positive wire 31 and first motor cathode conductor 32 are wrapped in the first harness 3, are patched by second Part 4 (CN3 shown in Fig. 3) is connect with first motor 5.Wherein, first motor positive wire 31 connects just connecing for first motor 5 Line end, first motor cathode conductor 32 connect the negative terminals of first motor 5.

Second motor positive wire 62 and the second electrode negative conducting wire 61 are wrapped in the second harness 6, are patched by third Part 7 (CN4 shown in Fig. 3) is connect with the second motor 8.Wherein, the second motor positive wire 62 connects just connecing for the second motor 8 Line end, the second electrode negative conducting wire 61 connect the negative terminals of the second motor 8.

The working principle of double-motor driving device provided by the embodiment of the utility model is as follows:

Power supply POWER passes through connecting element and first motor for providing DC power supply, the output port CN1 of driving circuit 5 and second motor 8 connect.When the pin motor_1 of control chip exports high level, pin motor_2 exports low level When (motor_1=1, motor_2=0), the first relay KR1 is attracted, and the second relay KR2 is disconnected, output port CN1's The anode of first port connection power supply.Electric current enters the anode of first motor 5 and the cathode of the second motor 8 through output port CN1, At this point, first motor 5 rotates forward, the reversion of the second motor 8.When the pin motor_1 of control chip exports low level, pin motor_ When 2 output high level (motor_1=0, motor_2=1), the first relay KR1 is disconnected, and the second relay KR2 is attracted, defeated The anode of the second port connection power supply of exit port CN1.Electric current enters the cathode and second of first motor 5 through output port CN1 The anode of motor 8, at this point, first motor 5 inverts, the second motor 8 is rotated forward.Electric current returns to power cathode, shape through first resistor R1 At an electric power loop.

Illustratively, key can be set, control the rotation direction of motor.For example, working as first motor 5 and the second motor 8 When for driving crane to move up and down, it can be set and rise key and decline key.Rise key and decline key with control The connection of coremaking piece controls the pin motor_1 output high level of chip, pin motor_2 output when rising key is pressed Low level.When decline key is pressed, the pin motor_1 output low level of chip, the high electricity of pin motor_2 output are controlled It is flat.

When first motor 5 or the second motor 8 detect point there are the pin mot_1AD for when the case where stall, controlling chip Flow the circuit variation of branch.Control chip controls pin motor_1 and pin motor_2 exports low level, first motor 5 It is stalled with the second motor 8.

It when crane rises to top, touches the first limit switch J1 and is attracted, the pin motor_H for controlling chip is received To high level, controls chip controls pin motor_1 and pin motor_2 and export low level, first motor 5 and the second motor 8 stallings.When crane drops to bottom, touches the second limit switch J2 and be attracted, the pin motor_L for controlling chip is received High level, control chip controls pin motor_1 and pin motor_2 export low level, first motor 5 and the second motor 8 Stalling.

Double-motor driving device provided in this embodiment can make two motor synchronous backward rotations, and at low cost.

Optionally, it is provided with control assembly 9 on the front panel of kitchen ventilator, is removed in control assembly 9 and is equipped with power button and shelves Outside the key of position, it is additionally provided with and rises key and decline key.Rise key and decline key with the control of double-motor driving device Chip connection, when rising key is pressed, control chip controls output port is that first motor 5 and the second motor 8 are powered, the One motor 5 rotates forward, the reversion of the second motor 8.Crane rises under the drive of first motor 5 and the second motor 8, and then drives Kitchen ventilator rises.When decline key is pressed, control chip controls first motor 5 is inverted, and the second motor 8 rotates forward.Crane Decline under the drive of first motor 5 and the second motor 8, and then drives kitchen ventilator decline.First motor 5 and the second motor 8 exist Under the control of the same signal of the output port output of double-motor driving device, oppositely rotate synchronously each other, to realize The lifting of kitchen ventilator.

It is alternatively possible to be respectively set at the top and bottom of crane stroke the first limit switch and second limit open It closes.First limit switch and the second limit switch are connect with control chip.When crane rises to top, the first limit is touched Bit switch is attracted, and controls chip controls first motor 5 and the stalling of the second motor 8, and crane is parked in top position and no longer rises.When It when crane drops to bottom, touches the second limit switch and is attracted, control chip controls first motor 5 and the stalling of the second motor 8, Crane is parked in bottom position and no longer declines.By the way that limit switch is arranged, do not need again respectively to detect two motors respectively dynamic Make starting point and movement terminating point, is also beneficial to improve the synchronous effect of first motor and the second motor.

In an optional embodiment, wind deflector is fixed on crane, wind deflector is located at the front side of kitchen ventilator.Work as oil smoke For machine in use state, wind deflector is in the side opposite with user, can escape on front side of kitchen ventilator to avoid oil smoke, and flow to User improves user experience.

In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition Concrete meaning in the present invention.

It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

Finally, it should be noted that embodiment described above, only specific embodiment of the present utility model, to illustrate this The technical solution of utility model, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned The utility model is described in detail in embodiment, those skilled in the art should understand that: it is any to be familiar with this skill The technical staff in art field within the technical scope disclosed by the utility model, still can be to skill documented by previous embodiment Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications, Variation or replacement, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution It encloses, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described is wanted with right Subject to the protection scope asked.

Claims (10)

1. a kind of Dual-motors Driving kitchen ventilator, crane and the double-motor driving device for driving the crane to move up and down；Its It is characterized in that, the double-motor driving device includes driving circuit and the output port by connecting element and the driving circuit The first motor of connection and the second motor；

The positive terminals and negative terminals of the first motor and the positive terminals of second motor and negative terminals are on the contrary It is connected on the output port of the driving circuit, so that the first motor and second motor are in the driving circuit It synchronizes and rotates backward under control.

2. kitchen ventilator according to claim 1, which is characterized in that the driving circuit include control chip and with the control The first relay and the second relay of coremaking piece connection；The output port passes through the first relay and the second relay respectively Connect power supply；

The output port includes first port and second port；When first relay is connected, the first port connection The anode of the power supply；When second relay is connected, the second port connects the anode of the power supply.

3. kitchen ventilator according to claim 2, which is characterized in that the first port is connected by first relay The anode of the power supply, and be grounded by first resistor；The second port connects the power supply by second relay Anode, and be grounded by the first resistor.

4. kitchen ventilator according to claim 3, which is characterized in that the driving circuit further include with the first resistor simultaneously The diverter branch of connection；Test point is provided on the diverter branch, the test point is connect with the control chip；The control Chip controls the first motor and the stalling of the second motor according to the curent change of the test point.

5. kitchen ventilator according to claim 4, which is characterized in that the diverter branch includes the capacitor being connected in series and the Two resistance；The test point is between the capacitor and the second resistance.

6. kitchen ventilator according to claim 3, which is characterized in that connected between the first port and the first resistor There is first diode；The second diode is connected between the second port and the first resistor.

7. kitchen ventilator according to claim 2, which is characterized in that the positive terminals of the first motor connect the output The first port of port；The positive terminals of second motor connect the second port of the output port.

8. kitchen ventilator according to claim 2, which is characterized in that the double-motor driving device further includes and the control The limit switch of chip connection；When limit switch closure, the first relay described in the control chip controls and described Second relay disconnects.

9. kitchen ventilator according to claim 1, which is characterized in that wind deflector is provided on the crane, it is described to keep out the wind Plate is located at the front side of the kitchen ventilator.

10. kitchen ventilator described according to claim 1~any one of 9, which is characterized in that the of the double-motor driving device One motor and the second motor are connected to the left and right sides of the crane.