CN206145756U

CN206145756U - Range hood

Info

Publication number: CN206145756U
Application number: CN201621129163.0U
Authority: CN
Inventors: 周健荣
Original assignee: Guangdong Aibeier Electric Co Ltd
Current assignee: Foshan MGA Electric Co., Ltd.
Priority date: 2016-10-17
Filing date: 2016-10-17
Publication date: 2017-05-03
Anticipated expiration: 2026-10-17

Abstract

The utility model relates to a range hood. Which comprises a machine shell, be equipped with the fan in the casing, the fan includes single phase motor, single phase motor includes starting winding, operation winding and operation electric capacity, operation winding and starting winding tie point are connected with the live wire, the operation winding is connected its characterized in that with the tie point of operation electric capacity with the zero line: still including speed -raising electric capacity and speed -raising button switch, speed -raising electric capacity is connected with operation capacitance parallel connection, speed -raising button switch is connected and sets up on the casing surface with speed -raising capacitance parallel connection. The utility model discloses a to move electric capacity and switch into the speed -raising electric capacity that capacitance is bigger, consequently increase the electric current of fan, and improve the rotational speed of fan, thereby increased the utility model discloses range hood's the amount of wind and the smoke exhaust efficiency who has improved range hood. The utility model discloses can realize promoting the fan rotational speed by a key, increase smoke exhausting amount, keep range hood to discharge fume at a high speed.

Description

A kind of smoke exhaust ventilator

Technical field

The utility model is related to smoke exhaust ventilator technical field, more particularly to a kind of smoke exhaust ventilator.

Background technology

The demand for quickly draining oil smoke that user cannot be met of existing smoke exhaust ventilator, such as family kitchen oil cauldron sometimes The oil smoke of generation can increase suddenly, particularly hotel kitchen, restaurant kitchen, compare family kitchen, hotel kitchen, restaurant kitchen Oil smoke is more increased, more many, and the fan delivery of existing smoke exhaust ventilator is little, causes flue gas velocity slow, even if existing smoke exhaust ventilator High gear is transferred to, also cannot quickly and completely drain the oil smoke of family kitchen, hotel kitchen, restaurant kitchen.

Utility model content

The purpose of this utility model be provide it is a kind of it is simple and reasonable, can a key lift rotation speed of fan, increase row Smoke, the smoke exhaust ventilator for keeping smoke evacuation at a high speed.

What the purpose of this utility model was realized in：

A kind of smoke exhaust ventilator, including casing, are provided with blower fan in the casing, the blower fan includes monophase machine, the list Phase motor includes starting winding, operation winding and operation electric capacity, the operation winding and startup winding connection points and live wire phase The tie point of connection, the operation winding and operation electric capacity is connected with zero line, also including speed-raising electric capacity and speed-raising button switch, The speed-raising electric capacity is connected in parallel with operation electric capacity, and the speed-raising button switch is connected in parallel and is arranged on casing with speed-raising electric capacity Surface.

As the utility model more specifically technical scheme.

Capacity of the capacity of the speed-raising electric capacity more than operation electric capacity.

The speed-raising button switch includes button, normally closed interlock, normally open contact and mobile contact, the normally closed interlock and often Respectively positioned at the both sides of mobile contact, the button is connected open contact with mobile contact, the mobile contact and single-phase electricity The startup winding of machine is electrically connected with, and the normally closed interlock and operation electric capacity are electrically connected with, and the normally open contact and speed-raising electric capacity are electric Property connection.

The capacity of the speed-raising electric capacity is 5-8uF, and the capacity of the operation electric capacity is 2-5uF.

The capacity of the speed-raising electric capacity is 6uF, and the capacity of the operation electric capacity is 4uF.

The beneficial effects of the utility model are：

The utility model increases blower fan by the way that operation electric capacity is switched to into the bigger speed-raising electric capacity of capacitance Electric current, improves the rotating speed of blower fan, so as to increasing the air quantity of the utility model smoke exhaust ventilator and improve the row of smoke exhaust ventilator Cigarette efficiency.The utility model can a key realize being lifted rotation speed of fan, increase exhaust smoke level, keep smoke exhaust ventilator to discharge fume at a high speed.

Description of the drawings

Fig. 1 is the structural representation of the utility model smoke exhaust ventilator.

Fig. 2 is circuit diagram of the utility model smoke exhaust ventilator in general rotation speed operation state.

Fig. 3 is circuit diagram of the utility model smoke exhaust ventilator in speed-raising operating condition.

Fig. 4 is the internal structure schematic diagram of speed-raising button switch of the present utility model.

Specific embodiment

Embodiment one, as shown in Figures 1 to 4, a kind of smoke exhaust ventilator, including casing 1, blower fan 2 is provided with the casing 1, The blower fan 2 includes monophase machine 20, and the monophase machine 20 includes starting winding 21, operation winding 22, runs electric capacity 23, carries Fast electric capacity 24 and speed-raising button switch 27, the operation winding 22 and the startup tie point of winding 21 are connected with live wire L, described The tie point of operation winding 22 and operation electric capacity 23 is connected with zero line N, and the speed-raising electric capacity 24 is in parallel with operation electric capacity 23 even Connect, the speed-raising button switch 27 is connected in parallel and is arranged on the surface of casing 1 with speed-raising electric capacity 24.

As the utility model more specifically technical scheme.

Capacity of the capacity of the speed-raising electric capacity 24 more than operation electric capacity 23.

The speed-raising button switch 27 includes button 271, normally closed interlock 272, normally open contact 273 and mobile contact 274, institute Normally closed interlock 272 and normally open contact 273 are stated respectively positioned at the both sides of mobile contact 274, the button 271 and mobile contact (274) it is connected, the startup winding of the mobile contact 274 and monophase machine 20（21）It is electrically connected with, the normally closed interlock 272 are electrically connected with operation electric capacity 23, and the normally open contact 273 and speed-raising electric capacity (24) are electrically connected with.

The capacity of the speed-raising electric capacity 24 is 5-8uF, and the capacity of the operation electric capacity 23 is 2-5uF.

The capacity of the speed-raising electric capacity 24 is 6uF, and the capacity of the operation electric capacity 23 is 4uF.

Operation principle of the present utility model：

The utility model smoke exhaust ventilator when in use, if kitchen runs into the situation of big oil smoke, as long as user one presses carrying Fast button switch 27, the mobile contact 274 of the button switch 27 that raises speed will disconnect the connection with normally closed interlock 272, and mobile tactile 274 can close with normally open contact 273, and operation electric capacity 23 is disconnected, and the electric capacity 24 that raises speed is connected to the circuit of monophase machine 20 In, due to running the capacity of the capacity less than speed-raising electric capacity 24 of electric capacity 23, therefore the electric current of monophase machine 20 is increased, so as to carry The high rotating speed of blower fan 2, so as to increase the air quantity of the utility model smoke exhaust ventilator, improves the smoke exhaust efficiency of smoke exhaust ventilator.

Claims

1. a kind of smoke exhaust ventilator, including casing（1）, the casing（1）Inside it is provided with blower fan（2）, the blower fan（2）Including single-phase electricity Machine（20）, the monophase machine（20）Including startup winding（21）, operation winding（22）And operation electric capacity（23）, the operation Winding（22）With startup winding（21）Tie point and live wire（L）It is connected, the operation winding（22）With operation electric capacity（23）'s Tie point and zero line（N）It is connected, it is characterised in that：Also include speed-raising electric capacity (24) and speed-raising button switch (27), it is described to carry Fast electric capacity (24) and operation electric capacity（23）It is connected in parallel, speed-raising button switch (27) is connected in parallel simultaneously with speed-raising electric capacity (24) It is arranged on casing（1）Surface.

2. smoke exhaust ventilator according to claim 1, it is characterised in that：The casing（1）Activate switch is additionally provided with surface (11) and driving switch (12), the activate switch (11) is connected in series in monophase machine with driving switch (12)（20）Live wire （L）On.

3. smoke exhaust ventilator according to claim 2, it is characterised in that：The capacity of speed-raising electric capacity (24) is more than operation electric capacity （23）Capacity.

4. smoke exhaust ventilator according to claim 3, it is characterised in that：It is described speed-raising button switch (27) including button (271), Normally closed interlock (272), normally open contact (273) and mobile contact (274), the normally closed interlock (272) and normally open contact (273) point Not Wei Yu mobile contact (274) both sides, the button (271) is connected with mobile contact (274), the mobile contact 274 and monophase machine（20）Startup winding（21）Electric connection, the normally closed interlock (272) and operation electric capacity（23）Electrically connect Connect, the normally open contact (273) and speed-raising electric capacity (24) are electrically connected with.

5. smoke exhaust ventilator according to claim 4, it is characterised in that：The capacity of speed-raising electric capacity (24) is 5-8uF, described Operation electric capacity（23）Capacity be 2-5uF.

6. smoke exhaust ventilator according to claim 5, it is characterised in that：It is described speed-raising electric capacity (24) capacity be 6uF, the fortune Row electric capacity（23）Capacity be 4uF.